There are 10 MCQS.Choose the option that is you think is correct.Give all of your answers in one comment (like 1A,2A,3A )

(1) The rate of doing work at any instant of time is called :

A. average power

B. variable power

C. constant power

D. instantaneous power

(2) Two bodies with K.E in the ratio of 4:1 are moving with equal linear momentum.The ratio of their masses is :

A. 1:2

B. 1;4

C. 4:1

D. 1:1

(3) Correct pair of words for terminal velocity is :

A. minimum, constant

B. maximum, increasing

C. minimum, decreasing

D. maximum, constant

(1) The rate of doing work at any instant of time is called :

A. average power

B. variable power

C. constant power

D. instantaneous power

(2) Two bodies with K.E in the ratio of 4:1 are moving with equal linear momentum.The ratio of their masses is :

A. 1:2

B. 1;4

C. 4:1

D. 1:1

(3) Correct pair of words for terminal velocity is :

A. minimum, constant

B. maximum, increasing

C. minimum, decreasing

D. maximum, constant

(4) The frequency of a spring oscillation doubles when :

A. the mass is halved

B. the mass is doubled

C. the mass is quadrupled

D. the mass is reduced to one-fourth

(5) Maximum work can be obtained in the ___ process.

A. adiabatic

B. isochronic

C. isothermal

D. cyclic

(6) If the K.E of free electron doubles,then its de-Broglie wavelength changes by the factor :

A. 2

B. 1/2

C. 1/√2

D. √2

A. the mass is halved

B. the mass is doubled

C. the mass is quadrupled

D. the mass is reduced to one-fourth

(5) Maximum work can be obtained in the ___ process.

A. adiabatic

B. isochronic

C. isothermal

D. cyclic

(6) If the K.E of free electron doubles,then its de-Broglie wavelength changes by the factor :

A. 2

B. 1/2

C. 1/√2

D. √2

(7) The circuit in which current and voltage are in phase,the power factor is

A. -1

B. 0

C. 1

D. 2

(8) The reactance Xc of a capacitor is given by :

A. wC

B. 1/w

C. 1/C

D. 1/wC

(9) The unit of permeability of free space is :

A. T .m^2.A^-1

B. T.m.A^-2

C. T.m.A^-1

D. none of these

10) A one microfarad capacitor of a TV is subjected to 4000volts.The energy stored in the capacitor is :

A. 2 ✖ 10^-3J

B. 8J

C. 16J

D. 4 ✖ 10 ^-3J

Test your Chemistry.

Take Chemistry Test No 6

A. -1

B. 0

C. 1

D. 2

(8) The reactance Xc of a capacitor is given by :

A. wC

B. 1/w

C. 1/C

D. 1/wC

(9) The unit of permeability of free space is :

A. T .m^2.A^-1

B. T.m.A^-2

C. T.m.A^-1

D. none of these

10) A one microfarad capacitor of a TV is subjected to 4000volts.The energy stored in the capacitor is :

A. 2 ✖ 10^-3J

B. 8J

C. 16J

D. 4 ✖ 10 ^-3J

Test your Chemistry.

Take Chemistry Test No 6

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