11th Physics Monthly Test - 4 ( Nature of Physical World and Measurement)

MABS Institution

11th Physics Monthly Test - 4 ( Nature of Physical World and Measurement)-Aug 2020

Time : 2.00 Hours

Part - A

Generic 5 - Answer All Question

Write the rules for rounding off? (or) Explain the rules framed for rounding off the numbers with the examples.

If the value of universal gravitational constant in SI is 6.6\(\times\)10^-11 Nm^-2 kg^-2,then find its value in CGS System.

Check the correctness of the equation\(\frac { 1 }{ 2 } \)mv² = mgh using dimensional analysis method.

Convert 76 cm of mercury pressure into Nm^-2 using the method of dimensions.

One mole of an ideal gas at STP occupies 22.4 L. What is the ratio of molar volume to atomic volume of a mole of hydrogen? Why is the ratio so large? Take radius of hydrogen molecule to be 1^oA.

What do you mean by propagation of errors? Explain the propagation of errors in addition and multiplication.

Obtain an expression for the time period T of a simple pendulum. The time period T depend upon (i) mass 'm' of the bob (ii) length 'l' of the pendulum and (iii) acceleration due to gravity g at the place where the pendulum is suspended. (Constant k = 2π) i.e

The force F acting on a body moving in a circular path depends on mass of the body (m), velocity (v) and radius (r) of the circular path. Obtain the expression for the force by dimensional analysis method. (Take the value of k = 1)

(i) Explain the use of screw gauge and vernier caliper in measuring smaller distances.
(ii) Write a note on triangulation method and radar method to measure larger distances

Write short notes on the following.
(a) Unit
(b) Rounding - off
(c) Dimensionless quantities

Explain propagation of errors in the difference of two quantities and also in the division of two quantities.

Discuss the relation of physics with other branches of science

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11th Physics Monthly Test - 4 ( Nature of Physical World and Measurement)

MABS Institution

11th Physics Monthly Test - 4 ( Nature of Physical World and Measurement)-Aug 2020

Part - A

Generic 5 - Answer All Question

Write the rules for rounding off? (or) Explain the rules framed for rounding off the numbers with the examples.

If the value of universal gravitational constant in SI is 6.6\(\times\)10-11 Nm-2 kg-2,then find its value in CGS System.

Check the correctness of the equation\(\frac { 1 }{ 2 } \)mv2 = mgh using dimensional analysis method.

Convert 76 cm of mercury pressure into Nm-2 using the method of dimensions.

One mole of an ideal gas at STP occupies 22.4 L. What is the ratio of molar volume to atomic volume of a mole of hydrogen? Why is the ratio so large? Take radius of hydrogen molecule to be 1oA.

What do you mean by propagation of errors? Explain the propagation of errors in addition and multiplication.

Obtain an expression for the time period T of a simple pendulum. The time period T depend upon (i) mass 'm' of the bob (ii) length 'l' of the pendulum and (iii) acceleration due to gravity g at the place where the pendulum is suspended. (Constant k = 2π) i.e

The force F acting on a body moving in a circular path depends on mass of the body (m), velocity (v) and radius (r) of the circular path. Obtain the expression for the force by dimensional analysis method. (Take the value of k = 1)

(i) Explain the use of screw gauge and vernier caliper in measuring smaller distances. (ii) Write a note on triangulation method and radar method to measure larger distances

Write short notes on the following. (a) Unit (b) Rounding - off (c) Dimensionless quantities

Explain propagation of errors in the difference of two quantities and also in the division of two quantities.

Discuss the relation of physics with other branches of science

Comment

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Tamilnadu Stateboardszs - Class

If the value of universal gravitational constant in SI is 6.6\(\times\)10^-11 Nm^-2 kg^-2,then find its value in CGS System.

Check the correctness of the equation\(\frac { 1 }{ 2 } \)mv² = mgh using dimensional analysis method.

Convert 76 cm of mercury pressure into Nm^-2 using the method of dimensions.

One mole of an ideal gas at STP occupies 22.4 L. What is the ratio of molar volume to atomic volume of a mole of hydrogen? Why is the ratio so large? Take radius of hydrogen molecule to be 1^oA.

(i) Explain the use of screw gauge and vernier caliper in measuring smaller distances.
(ii) Write a note on triangulation method and radar method to measure larger distances

Write short notes on the following.
(a) Unit
(b) Rounding - off
(c) Dimensionless quantities