mass

nature

shape

size

$\sqrt { \lambda } \approx \cfrac { { d } }{ 4D } $

$\lambda \approx \cfrac { { d }^{ 2 } }{ 4D } $

$d\approx \cfrac { { \lambda }^{ 2 } }{ D } $

$\lambda \approx \cfrac { D }{ 4 } $

A thin convex lens of focal length ${f} _{1}$ is placed in contact with a thin concave lens of focal length ${f} _{2}$. The combination will act as convex lens if ${f} _{1}<{f} _{2}$

Light on reflection at water-glass boundary will undergo a phase change of $\pi$

Spherical aberration is minimized by achromatic lens

If the image of distant object is formed in front of the retina then defect of vision may be myopia

maximum on the axis of the beam

minimum on the axis of the beam

the same everywhere in the beam

directly proportional to the intensity I

Angular momentum

Linear momentum

Energy

None of the above

Light requires a material medium to travel from one place to another

Light does not require a material medium to propagate

Light has mass but it is negligible

Light waves are longitudinal wave

atoms

electrons

corpuscles

quantas

mechanical effect

chemical effect

heating effect

all the above

$E=mc^2$

The photoelectric effect

Quantisation of charge

magic of light

energy, ears

corpuscles, eyes

energy, eyes

sensation, skin

Spherical aberration

Parallex

Optical illusion

none

Max Planck

Newton

Young

Einstein

$3 \times 10^4 ms^{-1}$

$3 \times 10^5 ms^{-1}$

$4 \times 10^6 ms^{-1}$

$3 \times 10^8 ms^{-1}$

refraction

diffraction

interference

polarisation

True

False

rectilinear

zig zag

circular

helical

True

False

True

False

Newton's rings.

rectilinear propagation of light.

colour through thin films.

Dispersion of white light into colours.

$4\pi nR$

$2\pi nR$

$nR/2\pi$

$nR/4\pi$

Always

Sometimes

Under special condition

Never

successfully explain the rectilinear propagation of light, reflection of light and refraction of light

does not explain the phenomena of interference of light, diffraction of light and polarisation of light

is based upon particle theory of light

None of the above

produced by a source at infinity

produced by a source at finite distance

produced by a virtual source

None of these

Frequency of the water waves decrease

Frequency of the water waves increase

Frequency of the water waves stays the same

None of the above

Candle power

Lux

Both A & B

None of the above

Light can only be described as particles.

Light can only be described as waves.

Light can be described as rays, waves and particles.

Light can only be described as rays.

Interference patterns are evident for light behaving as rays.

Ray properties of light are useful for understanding how images are formed by optical devices such as eyes.

Wave properties are important for observing the behaviour of light at a fine scale.

Both wave and particle theories of light can be related to the colour sensations produced by light.

newton's rings

rectilinear propagation of light

colour through thin films

dispersion of white light into colours

same

different

either (a) or (b)

None of these

True

False