Question # 1

If the kinetic energy of a free electron doubles, its de Broglie wavelength changes by the factor.

Choose an answer

√2

1/√2

2

1/2

The mass spectrum of naturally occurring neon, showing

Choose an answer

1 isotope

2 isotope

3 isotope

4 isotope

The minimum frequency needed to emit an electron form metal surface is called:

Choose an answer

Work function

Threshold frequency

Quanta frequency

All of above

The number of electrons emitted depends upon

Choose an answer

Colour of target surface

Shape of surface

Frequency of incident light

Intensity of incident light

The mass of beta particle is equal to the mass

Choose an answer

Proton

Neutron

Electron

Photon

Mass equivalent of 931 MeV energy is:

Choose an answer

6.02 x 10^-23 kg

1.766 x 10^-27kg

2.67 x 10^-29kg

6.02 x 10^-87kg

NC-1 is the SI unit is

Choose an answer

Force

Charge

Current

Electric intensity

Radius of first Bohr's orbit is.

Choose an answer

0.053 nm

0.053 mm

0.053 micro meter

0.053 m

The reactance is the ratio of

Choose an answer

V_rms/I_rms

V_rms x I_rms

I_rms/V_rms

V_max x V_rms

The anodes in cathode ray oscilloscope.

Choose an answer

Control number of waves

Control brightness of sept formed

Accelerate as well as focus beam

Negative potential w.r.t to chithode

Minority carriers in P-Types , substances are.

Choose an answer

Electrons

Protons

Holes

Neutrons

Charge carriers in electrolytes are.

Choose an answer

Protons

Electrons

Holes

Positive and Negative ions

By emitting Beta particle and gama particle simultaneously the nucleolus changes in its charges by

Choose an answer

N

N/2

N/4

3N/4

The electric potential at a mid point in an electric dipole is.

Choose an answer

0 V

0.5 V

1 V

1.5 V

The phase angle of a series RLC circult at resonant frequency is

Choose an answer

1/2

sigma

Zero

sigma /4

The electrical intensity is equal to:

Choose an answer

-Δr/Δv

Δv/Δr

Δv/Δv

-Δv/Δr

An atom can reside in excited state for

Choose an answer

10^-8 second

One second

10^-10 second

More than one second

Platinum wire becomes yellow at a temperature of.

Choose an answer

900^oC

1300^oC

1600^oC

500^oC

More Classes

Other Links

Ics Part 2 Physics Test Online 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