Question # 1

Mechanical waves on the surfaces of a liquid are

Choose an answer

Transverse

Longitudinal

Torsional

both transverse and longitudinal

In Young's experiment, two coherent sources are placed 0.90 mm apart and the fringes are observed one metre away. If its produces the second dark fringe at a distance of 1 mm from the central fringe, the wavelength of monochromatic light used would be

Choose an answer

60 x 10^-4cm

10 x 10^-4cm

10 x 10^-5cm

6 x 10^-5cm

Boyle's law is applicable in

Choose an answer

Isochoric process

Isothermal process

Isobaric process

Isotonic process

The volt/metre is the unit of:

Choose an answer

Potential

Work

Force

Electric field intensity

At 0°K which of the following properties of a gas will be zero?

Choose an answer

Kinetic energy

Potential energy

Vibrational energy

Density

Two sources of sound are said to be coherent if

Choose an answer

They produce sounds of equal intensity

They produce sounds of equal frequency

They produce sound waves vibrating with the same phase

They produce sound waves with zero or constant phase different all instant of time

A ten-ohm electric heater operates on a 110 V line. Calculate the rate at which it develops heat in watts:

Choose an answer

1310 W

670 W

810 W

1210 W

In case of p-n junction diode, at high value of reverse bias, the current rises sharply. The value of reverse bias is known as:

Choose an answer

Cut off voltage

Zener voltage

Inverse voltage

Critical voltage

Which one of the following phenomena is not explained by Huygen's construction of wavefront?

Choose an answer

Refraction

Reflection

Diffraction

Origin of spectra

A lens behaves as a converging lens in air and a diverging lens in water. The refractive index of the material is

Choose an answer

Equal to unity

Equal to 1.33

Between unity and 1.33

Greater than 1.33

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

A 220 V, 50 Hz. A.C. source is connected to an inductance of 0.2 H and a resistance of 20 ohm in series. What is the current in the circuit?

Choose an answer

10 A

5 A

33.3 A

3.33 A

How much water a pump of 2kW can raise in one minute to a height of 10 m, take g = 10 m/s²?

Choose an answer

1000 liters

1200 liters

100 liters

2000 liters

Velocity of sound in a diatomic as is 300 m/sec, what is its rms velocity?

Choose an answer

400 m/sec

40 m/sec

430 m/sec

300 m/sec

A photoelectric cell coverts

Choose an answer

Electrical energy to light energy

Light energy to light energy

Light energy to electrical energy

Light energy to elastic energy

The sieman is the SI unit of

Choose an answer

Resistance

Specific Resistance

Conductance

Inductance

More Classes

Other Links

NAT II Physical Science Physics 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