Question # 1

Speed of light in vacuum depends upon:

Choose an answer

Frequency

Wavelength

Amplitude

None of these

The size of the image is maximum when its distance from the magnifying glass is:

Choose an answer

0.10 m

0.15 m

0.20 m

0.25 m

Huygen's theory cannot explain

Choose an answer

Diffraction

Interference

Polarization

Photoelectric effect

The locus of all points in a medium having same phase of vibration is called

Choose an answer

Crest

Trough

Wavelength

Wave-front

The cause of mirage observed in deserts in bright sunlight is due to

Choose an answer

Refraction of light

Reflection of light

Scattering of light

Total internal reflection of light

Light has:

Choose an answer

Wave nature

Particle nature

Dual nature

None of these

A virtual image is formed when object is placed:

Choose an answer

Within focal length of a convex lens

Near the focal point of a concave lens

Both A and B

Away from 2F of a convex lens

A magnifier gives an image which is:

Choose an answer

Virtual, inverted

Real, erect

Virtual, erect

Real, inverted

Conventionally, all the distance p, q, f are measured from _____ of the lens:

Choose an answer

Focus

Optical center

Edges

None of these

Resolving power in mth order diffraction for grating is given by:

Choose an answer

R = N/m

R = m/N

R = N x m

None of these

The contrast in the fringes in an interference pattern depends upon

Choose an answer

Fringe width

Relative difference intensities of the two sources

Distance between the slits

Wavelength

The locus of all the points in the same phase of vibration is called:

Choose an answer

Wave packet

Wave front

Wave number

None of them

The ratio of the diameter of two convex lenses is _____-the ratio of their focal lengths:

Choose an answer

Greater than

Less than

Equal to

None of these

The velocity of light in vacuum can be changed by changing

Choose an answer

Frequency

Amplitude

Wavelength

None of these

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

A line which represents the direction of travel of a wave is known as:

Choose an answer

Spherical Wavefront

Locus

Ray

Either B or C

More Classes

Other Links

ECAT Physics Chapter 9 Physical Optics Online Test 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