Question # 1

A force of 100 N makes on angle of 60^owith y axis, its horizontal component is.

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50 N

60 N

70.7 N

86.6 N

The fringe spacing in a double slit experiment can be increased by decreasing.

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Wavelength of light

Width of slits

Slit separation

Distance between the slits and the screen

Teh overlapping of physics and other fields gave brith to

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Interdisciplinary areas of physics

Areas of Physics

Areas of science

All of these

Which one of the following force cannot do any work on the particle on which it acts.

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Fractional force

Gravitational force

Electrostatic force

Centripetal force

The angle between circumference of a circle and center is

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the velocity of sound is maximum at 20 ^oC in

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Lead

Copper

Glass

Iron

Original source of energy for biomass is

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Earth

Star

Moon

Sun

The Detector in Photo phone is made up of.

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Cadmium

Germanium

Selenium

Silicon

Two waves of same frequency and moving in the same direction produces.

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Interference

Diffraction

Beats

Stationary waves

Force 12 N and 5 N are add, the resultant con not be

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13 N

6 N

7 N

17 N

The temperature of human body on Kelvin scale is

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210K

310K

410K

510K

Frequency range of hearing of cats is.

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20-20000 Hz

10- 10000 Hz

60-20000 Hz

60-70000 Hz

The ability of a body to do work is called its

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Force

Power

Capacity

Energy

Opted unit to measure blood pressure is.

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N/m2

Pascal

mm of Hg

N.m2

One revolution is equal to.

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90^o

180^o

360^o

270^o

The time rate of change of momentum equals

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Weight

Applied force

Impulse

Mass

Rate of change of displacement is called

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Speed

Velocity

Kinetic energy

None of these

In rotational motion the analogous of mass is

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Angular acceleration

Torque

Moment of inertia

Angular momentum

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