Question # 1

Photoelectric effect takes place with a photon of:

Choose an answer

Very high energy

Very low energy

Low energy

High energy

None of these

The sum of positive and negative peak values are usually written as

Choose an answer

P-P value

negative

zero

may be positive or negative

When a person jumps off the ground, the reaction force of the ground is

Choose an answer

greater than the weight of the person

smaller than the weight of the person

equal to the weight of the person

zero

When the object lies between F and 2F, the image formed by is formed at:

Choose an answer

Real

Virtual

Diminished

Erect

In describing functions of digital systems, a closed switch will be shown as

Choose an answer

0

1

low

any one of these

A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done is 25J. The angle which the force makes the direction of motion will be:

Choose an answer

60°

90°

30°

0°

If rope of lift breaks suddenly. The tension exerted by the surface of lift is (a=Acceleration of lift)

Choose an answer

mg

m (g+a)

m (g - a)

0

If 2.2 kilowatt power is transmitted through a 10 ohm line at 22000 volt, the power loss in the form of heat will be

Choose an answer

0.1 watt

1 watt

10 watt

100 watt

In magnet-coil experiment, emf can be produced by:

Choose an answer

Keeping the coil stationary and moving the magnet

Keeping the magnet stationary and moving the coil

Relative motion of the loop and magnet

Any one of above

All above

A car is turning around a corner at 10 m/sec as it travels along an arc of a circle. If value of centripetal acceleration is 10 m/sec²in this case, find radius of the circular path:

Choose an answer

1 m

5 m

10 m

15 m

Work-energy principle states that work done on the body by applied force is equal to change in:

Choose an answer

Potential energy

Kinetic nergy

Linear momentum

None of these

The ratio of the atomic radius to nuclear radius is

Choose an answer

10⁴

10^-4

10²

10^-2

The electrical resistance of mercury disappeared below temeprature

Choose an answer

2.1 K

3.4 K

4.1 K

4.2 K

Phenomenon of interference and diffraction support the:

Choose an answer

Quantum nature of light

Tranverse nature of light

Wave nature of light

Complex nature of light

A tank containing water has an orifice in one vertical side. If the centre of the orifice is 10 m below the surface level in tank, then velocity of efflux is

Choose an answer

44 ms^-1

14 ms^-1

10 ms^-1

49 ms^-1

Which one of the following phenomenon cannot be explained on the bases of Huygen's theory?

Choose an answer

Refraction

Reflection

Diffraction

Formation of spectrum

Which is having minimum wavelength?

Choose an answer

X-rays

Ultra-violet rays

Y-rays

Cosmic rays

The original source of hydroelectric is

Choose an answer

Water

Wind

Sun

Moon

Thermal and mechanical equilibrium is maintained all the time so that each process is

Choose an answer

Reversible

Perfectly reversible

Irreversible

None of these

The ratio of nuclear magneton and and Bohr magneton is

Choose an answer

m_e/m_p

m_p/m_e

m_e/m_p

2m_p/m_ez

A stethoscope detects the instant at which the external pressure is

Choose an answer

Greater than systolic pressure

Equal to systolic pressure

Lower than systolic pressure

None of these

If two non zero vectors A and B obey the relation |A + B| = |A - B|.then the angle between them is:

Choose an answer

120°

90°

60°

0°

More Classes

Other Links

Physics General Science Test Medium Mode MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer