Physics Quiz 3

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Physics Quiz 3

1 ) There are 3 bulbs of 600 W , 200 W , 300 W . Which bulb has less thicker filament ?

1 point

A ) 200 W ,

B ) 300 W ,

C ) 600 W ,

D ) None of these ,

Clear selection

2 ) The period of satellite in an orbit of radius R is T . So what will be time period , if radius is 9R ?

1 point

A ) increase by 3 times ,

B ) increase by 9 times ,

C ) increase by 18 times ,

D ) increase by 27 times ,

Clear selection

3 ) If a force of 10 N is applied perpendicular to a moment arm 8m , then torque will be ?

1 point

A ) 0 Nm ,

B ) 80 Nm ,

C ) 40 Nm ,

D ) None of these ,

Clear selection

4 ) If the tensile force is suddenly removed from a wire , then its temperature will …………. ?

1 point

A ) increased ,

B ) decrease ,

C ) no change ,

D ) None of these ,

Clear selection

5 ) Angle between the coil of 3 phase is ………. ?

1 point

A ) 0 degree ,

B ) 90 degree ,

C ) 120 degree ,

D ) 180 degree ,

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6 ) A particle executing SHM have maximum velocity at …….. ,

1 point

A ) mean position ,

B ) extreme position ,

C ) same at everywhere ,

D ) None of these ,

Clear selection

7 ) Velocity of sound in vacuum is …………. ,

1 point

A ) 0 m/s ,

B ) 100 m/s ,

C ) Infinite ,

D ) None of these ,

Clear selection

8 ) 1 gm/cm2 = ( ? ) kg/m .

1 point

A ) 10^1 ,

B ) 10^2 ,

C ) 10^4 ,

D ) None of these ,

Clear selection

9 ) ………… process occurs at constant heat or entropy .

1 point

A ) Adiabatic ,

B ) Isothermal ,

C ) Isochoric ,

D ) None of these ,

Clear selection

10 ) Shear modulus for ………… is zero .

1 point

A ) liquid ,

B ) solid ,

C ) gas ,

D ) None of these ,

Clear selection

11 ) X-rays passing through a strong uniform magnetic field , it will ……… ,

1 point

A ) deflect ,

B ) not deflect ,

C ) may or not ,

D ) None of these ,

Clear selection

12) Two waves travelling in same direction and having same frequency , it will give ………… ,

1 point

A ) superposition ,

B ) interference ,

C ) beats ,

D ) None of these ,

Clear selection

13 ) Sound waves have maximum velocity in …………. ,

1 point

A ) solids ,

B ) liquids ,

C ) gases ,

D ) None of these ,

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14 ) The relation between escape velocity and critical velocity is ……. ?

1 point

A ) Vesc = √2 V˳ ,

B ) V˳ = √2 Vesc ,

C ) Vesc = √3 V˳ ,

D ) V˳ = √3 Vesc ,

Clear selection

15 ) Area under force and displacement gives ……. ?

1 point

A ) power ,

B ) work ,

C ) acceleration ,

D ) None of these ,

Clear selection

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