POST OFFICE MONTHLY INCOME PLAN

    POST OFFICE MONTHLY INCOME PLAN 

   The post office monthly income plan for us.  This is about monthly income plan .Everyone want  a save  little from their salary .However most people difficult to keep them on hand. This monthly income plan will be useful such people . 

Many people are looking at different ways to save money ,that is money deposit bank etc..  Everyone who wants to save  money for the future wants to stand in the right place .Therefore every one chooses what they  want in a low risk way . If so it is best to invest in the post office . We also get interest every month 

This program is very useful for the elderly and  those who have difficulty working. 

If you invest 4 lacks for 5 years as per the post office scheme, you will get an interest rate of  7.6 % at Rs 2850 . You get only 6.7 % from other banks. If you invest very loyally in this way ,you will get money per month. 

It will be very useful for most people. 

PLUS ONE PHYSICS QUESTIONS AND ANSWERS

Chapter 8
           GRAVITATION

1. What would happen to  the duration of the year if the distance between the earth and  the sun gets doubled

Ans:- 2.828

2. The dimensional formula for gravitation constant is

Ans:- M -2 L 3 T -2

3.  The kinetic energy of a satellite is 2M joules  what is the total energy?

Ans:-  -2M Joules

4. The orbital velocity of a satellite at hight
r from the centre if earth is v. What will be the value of the escape velocity from the Same location ?

Ans:- 1.414 Vo

5. A body dropped from a satellite moved towards the surface of earth . State whether this statement true or False

Ans:- False.  A body dropped from a satellite moves along with the satellite

6. Work done to shift 1 kg of mass  from the surface of earth to infinity is

Ans:- gR

7.  A mass m is placed at centre of  allow sphere  of mass M and radius R .what is the gravitational force of mass m

Ans:- zero

8. The density of earth  is doubled keeping its radius constant . The acceleration due to gravity will be

Ans:- 1.96 m/s 2

9.  If the mass of the body  on the moon 13 denoted  by M m and that  on the earth by Me,then Mm=....................

Ans:- Mm=Me

10. A satellite is moved  out into orbit of larger radius. With of the following quantities associated with increases

Ans:- potential energy

11. State kelper 's law which you made use of there

Ans:- law of period- square of the time period of revaluation of a  plant  is proportional to the cube of semi - major axis of the ellipse . Traced by the plant

12. Velocity required for a satellite to remain in a particular orbit is called

Ans:- orbital velocity

13. Prove that total energy of n orbit satellite is equal to it is kinetic energy is magnitude

Ans:- total energy = KE+ PE = 1/2 mv2
           GMm/r
           V2=GM/r;so E=1/2GMm/r GMm/r
           =-1/2GMm/r
          E=-1/2GMm/r and K.E=1/2GMm/r

14.If satellite goes on lossing energy due to friction how will its orbital  speed and motion be affected

Ans:- Satellite comes closer to the earth with increasing speed

PLUS ONE CHEMISTRY QUESTIONS AND ANSWERS

Chapter 8
          REDOX REACTIONS

1.  Which of the following molicules  can get act an oxidizing as well as  reusing agent
a.H2O2
b.H2S
c.F2
d. SO2

Ans:- H2O2

2. The element that does not exhibit  positive oxidation state is

Ans:- F

3. In the chemical reaction

AgO + H2O + 2 e- + 2 Ag + 2 OH-

a. Electron are reduced
b. Silver is oxidized
C. Solver is reduced
d. Hydrogen is reduced

Ans:- solver is reduced

4. Methanol is a good cundector of electric current , state whether this statement true or False

Ans:- False

Methanol will not conduct electric current , because it does not ionise

5.  The reaction  2H2O  gives  4H- + O2 + 2e -

Ans:-  redox reaction

6.  The number of electron involved in   the reduction  of  one nitrate ion into hydrazine
Is

Ans:- 7

7. In the reaction the reduction product is 
2KMnO4 + 16 HCl gives 5 Cl2 + 2MnCl2 + 2 KCl + 8H2O

Ans:- MnCl2

8. Observe the relationship between first two terms and filling in the blank

a. H20:  An amphoteric species
b.BF3 :
Ans:- lewis acid

9. Choose the correct pair
a. IM NaOH : 6.98
b. Blood  : zero
c. IM HCl :  pH = 7.4

Ans:-  IM NaOH : 6.98

10.  The solution containing mixture of oxalic acid and  sodium oxalate  can act as buffer solution . State whether this statement true or False

Ans:-  True

11.  Calculate the oxidation number of
S in H2S and O in H2O2

Ans:-  S in H2S has 2 oxidation number and O in H2O2 has 1 oxidation number

12. Why is potassium is high reactive metal where is gold is Nobel metal

Ans:- K has low ionisation enthalpy and has low reduction potential.  Therefore there is highly reactive metal where is Au has high reduction potential .therefore it is a noble metals

13.What is the oxidation number of S in Na2 S4O6 and Na2SO3

Ans:- zero

14.  Write formula following compound

a.   mercury( ii)chloride
b.  Ion( ii)sulphate
c.  Chromium( iii)oxide

Ans:-
a. HgCl2
b. Fe3 (SO4)3
c. Cr2O3

PLUS ONE BOTONY QUESTIONS AND ANSWERS

Chapter
        TRANSPORT IN PLANTS

1. Study  the relation and fill in the blank

Zinc -  carboxylas
.........-  Nitrogenus

Ans:-  molybdenum

2. Plant with zinc deficiency show reduced bio synthesis of

Ans:- auxin

3. .......... is the essential element present in the amino acid metheonin and cysteine

Ans:-  sulphur

4. The most abundant element found in plant is

Ans:-  carbon

5. Premature leaf fall is due to deficiency

Ans:- phosphorus

6. Which one of the following is an amide involved in nitrogen assimilation by plants

Ans:- Glycine

7. Write a name of nitrogen fixing  gene in bacteria

Ans:- Nod ,nif and are the nitrogen fixing gene in bacteria

8. Study the relation and fill in the blank

Mangnesum : chlorosis
.............            : necrosis

Ans:- calcium

9. The root system of pea plant is provided with a number of knob like structures .what is the use of these structures ?

Ans:- Nitrogen fixation

10. Which one of the following is an amide   involved  in nitrogen assimilation by plants?

Ans:- Glycin

11. Which of the following elements is very essential for uptake and utilisation of ca 2+
And membrane function?

Ans:- Boron

12. Premature leaf fall is due to deficiency of

Ans:- phosphorus

13. Rhizobium bacteria and root nodules of pea plant is an example for

Ans:- symbiosis

14. Study the relationship and fill in the blank
Ion exchange: passive absorption

..................  : active absorption

Ans:- carrier concept

15. A plant cell when kept in a certain solution got plasmolysed .what was the nature of the solution

Ans:-  Hypertonic solution

PLUS ONE ZOOLOGY QUESTIONS AND ANSWERS

Chapter 8
         EXCREATORY PRODUCTS AND THEIR                          ELIMINATION

1.  Expand GFR

Ans:-  Glomerular filtration rate

2. Even though GFR in a healthy person is 180 L  per day . The amount of urine released per day is only about 1.5 L. Give reason

Ans:- Due to tubular  re absorption  Nearly  99%  of the filtrate  is  re absorbed by  thernal tubules

3. "The functioning of human kidney is efficiently monitored and regulated by hormonal action of hypothalamus pituitory
JGA and to certain extent by heart "

a. Do you agree with this statement

b. Justify your answer with sutable reason

Ans:-
a. Yes
b. ADH facilitates water re absorption from tubules  there by preventing diureti. ADH can also affect the kidney function by its constrictory effect on vessels .This cause an increasing blood pressure

4.  Observe the figure given below answer the questions

a. Write the name of the figure
b. Name the labelled part A and B,
c. Which is the site of formation of ultra filtrate

Ans:-
a. Renal capsules
b.  A-Glomerulus
     B- Bowman's capsules
C. Glomerulus

5. The output of  unine increases in cold days while decreases in hot and sunny days .
Can you give a reason
For this phenomenon as realized from the graph given below

Ans:- when temperature increases ADH level increases . Hormone increase re absoption of water from urine as a result only small quantity of urine is produced

6. A biology class related to excretion in the human body a student gave an opinion  that in every minute about 2 % of the total blood volume of body is converted to GFR where is only 1%  of this GFR is eliminated as urine .Evaluate this opinion and substantiate your answer

Ans:- it is due to re absorption of water from urine formed. This process takes place in the nephrone,

7. Although GFR is 125 ml/ mnt .only 1 to 1.5 liter  urine is exerted per day  give reason

Ans:- The volume of  fluid formed from the glomerulus capillaries into Bowman 's capsules is called GFR.in man the GFR IS 125 ml/ minute

8. Complete the each of the following sentence using appropriate words

a. Ascending limp of Henel's loop is .........to water .where is the decrease in limp is ............ to water

b. An excessive loss of fluid from the body stimulates the hypothalamus to release .......... hormone  from the

Ans:- a. Impermeable, permeable
          b. ADH, pituitary

9. Observe the figure and label the A and B

Ans:-
A- proximal convoluted tubule
B-  collecting duct

10. Prepare the flowchart of filtrate flow  in the nephrone

Ans:- Bowman's capsule-PCT- Descending limp of Henel's loop- Ascending lint if Henel's loop - DCT collecting duct

PLUS ONE CHEMISTRY QUESTIONS AND ANSWERS

Chapter 7
         EQUILIBRIUM

1.  The acid  that results when a base accepts proton is called

Ans:- conjugate acid of the base

2. Which one of the following has pH value of 10.5?

a. Lime water
b. Soft drink
c. Blood
d. Milk

Ans:- lime water

3. According to Lewis concept an acid is an  electron pair donor.  State whether this statement true or False

Ans:- False,  according to Lewis concept an acid is an electron pair acceptor

4. Which of the following will favor the reverse reaction in a chemical equilibrium
a. Increas in the concentration of  one or more of the product
b.  increase in presser
c.  Decreas in the pressure

Ans:- a

5. 1 l of water, 10^ -3 mol of Hcl is added  The pH of the solution is

Ans:- 7

6. Observe the  relationship between the first two terms and filling the blanks

CH3COONa: alkaline ,pH >7
NaNO3: ...............

Ans:- neutral pH = 7

7. Choose the correct pair
Liquid vapour : melting
Solid liquid : boiling point
Solid vapours: sublimation point

Ans:- solid vapours : sublimation point

8.  Which of the following statement  regarding a catalyst  in a equilibrium presses is currect ?

a. Increase the forword reaction
b. Increase the backward reaction
c. It hastens the easy attainment of equilibrium

Ans:- c

9. The ph of neutral water is 6.5. Then temperature of the water is

Ans:- more than 25°c

10. The aqueous solution of HCOONa,C6H5NH3Cl and kCN are respectively

Ans:- basic, acids,basic

11.The blue litmus paper dipped into a aqueous solution of NH4NO3 . Is there any colour change .substantiate your answer

Ans:- yes blue litmus paper changes to red
NH4NO3 is a salt formed from a weak base and a strong  acid  so on hydrolysis gives an acidic solution

12. To a basic buffer solution 3 drops of  0.1 M Hcl solution is added .still its pH  remain
Same for the observation

Ans:- Buffer is a solution which resists change in pH by the addition of  small amount of  acid or base .Here the H+ ion from the acid will be neutralised by the buffer

13. When some sodium acetate is added to a solution of acetic acid .the  concentration of unionised  acetic acid increases .what is the phenomenon involved have ? substantiate

Ans:- common ion effect. The dessosiation of acetic acid is suppressed by the common ion CH3COO which compines with H to form acetic acid

14. Select the sutable reagent . Prepare the basic buffer and an acidic buffer

NH4Cl,NH4OH,NaOH, NaCl, CH3COOH,CH3COONa

Ans:- Acidic buffer:- CH4COOH+CH3COONa
          Basic buffer:- NH4Cl,NH4OH

15. During a class room discussion one your friends argues that ionic product of water is not altered with the change in temperature
What is your view towards this argument .justify

Ans:- The argument is wrong .ionic product of water kw increases with increases in temperature since the dissociation  of water is an endothermic process

PLUS ONE PHYSICS QUESTIONS AND ANSWERS

Chapter 7
     SYSTEM  OF PARTICLE  AND                                    RELATIONAL    MOTION


1. A stone of mass m tied to a string of length l is rotating along a circular path with constant speed v  the torque on the stone is

Ans:- constant angular speed, torque is zero

2. The separation between carbon and oxygen atoms in co molicule is 0.12 nm .
What is the distance of  centre of mass from carbon atom ?

Ans:- 0.07 nm

3.A particle covers equal distances around a circular  part in equal interval of time . Which of the following quantity connected with a motion of particle remains constant with time?

Ans:- speed

4. A car is going round a circle of radius R1 with constant speed .Another car is going round  a  circle of radius R2  with constant speed  if both of them  take same ti
me to complete the circle .the ratio of the angular speed will be

Ans:- They take same time complete 1 circle so the angular velocity is same for both and ratio is 1

5. "The momentum of inertia of the body does not depend up on the angular speed "
State whether this statement true or False

Ans:- True

6. It is easier for swimming jumping into water hight to describe loop in the air by a

Ans:- pulling arms and legs closer decreases moment of inertia. Angular speed increases to conserve angular momentum

7. A particle move along a circular path of radius r with uniform speed V The angle describe the particle in one second is

Ans:- angle described in 1 sec = angular speed

8. A flywheel rotates at a constant speed of 3000 rpm  .The angle described by the shaft in radian in one second is

Ans:- 100 pai

9. A ring rolls along a plane surface  then the ratio between liner kinetic energy of the ring is

Ans:- 1:1

10. Which of the following will be conserved
Angular momentum, angular speed momentum of inertia

Ans:- angular momentum

11 . What will be duration of a day

Ans:- L= loo is constant .when R become half. l become  one fourth .

12. Define  momentum of inertia

Ans:- it is the rotational analog of  mass

13. What is the unit of momentum of inertia

Ans:- kg m2

14. Name the body whose momentum of inertia remains the same about all the axes passing through is center of mass

Ans:- solid sphere

15. Name the two types of motion  associated with the cylinder

Ans:- Transilational motion and rotational motion