Dispersion occurs when white light, which comprises seven colors, passes through a glass prism due to what reason?

An incident ray strikes a plane mirror at an angle of 20° with the mirror. The angle between the incident ray and reflected ray is __________.

What is it called when an obstacle appears in the path of sound to the extent that the sound deviates from the edge of the obstacle and propagates forward?

Which types of waves are utilized in typical TV remote controls?

What is the condition for constructive interference of light waves?

Which optical phenomenon explains why the edges of shadows appear blurred?

Tyndall effect is related to the ______________ of light.

Which of the following rays has the highest frequency?

In optics, the refractive index of a substance is described by the formula n = c/v, where 'c' is:

Among the following spectrums, which has all the frequencies from high to low frequency range?

Which of the following is/are an example/s of 'Scattering of Light'?

What phenomenon explains why a straw in a glass of water appears bent at the surface?

Which of the following series in the hydrogen spectrum lies in the ultraviolet region?

Which of the following is the range of wavelength that are used for purifying the water?

What is the effect observed when light passes through a narrow slit and spreads out into a series of bright and dark bands?

What is the phenomenon where light waves cancel each other out, resulting in regions of darkness?

When a ray of light travels from a denser medan to a rand medinant, it bends:

White light is an example of which of the following?

................colour has the maximum wavelength.

When a wave encounters a boundary between two different media, the ratio of the reflected wave intensity to the incident wave intensity depends on:

What is the effect observed when light waves reinforce each other to produce brighter regions, as seen in soap bubbles or oil films?

Which of the following statements about polarization of light is correct?

Which of the following statements about diffraction is correct?

In a double-slit experiment with electrons, the interference pattern disappears if:

Which among the below set of colours are generally known as the primary colours of light? 

The critical angle for total internal reflection is maximum for-

Which of the following options are examples of Total Internal Reflection?

A. Mirage

B. Microscopes

c. Optical Fibre

D. Mirror

Rainbow formation is due to _______

Which of the following rays has maximum frequency?

Which among the following electromagnetic waves has the maximum wavelength?

The optical fiber works on which principle?

As per the Brewster’s Law, the maximum polarization takes place when the angle is _____ degrees in between the reflected ray and refracted ray.

From among the following telescopes, which uses the longest wavelength?

According to the 'Law of Reflection', the angle of incidence is _______ the angle of reflection.

What is the wavelength range of visible light? [CHSL Exam 2024 Tier I]

In a neon laser, all the atoms emit the light waves of 

 Which among the following waves is not an electromagnetic wave?
 

In 1928,who discovered that when a ray of coloured light enters a liquid, a fraction of the light scattered by that liquid is of a different colour? [CHSL 2021 Tier I]

Which type of radiation has very short (<10–3 nm) wavelengths, produced by nuclear explosions, lightning and less dramatic activity of radioactive decay? [Combined Graduate Level Examination Tier I]

Which of the following has the shortest wavelength?

[NTPC CBT 2]

Which of the following are electromagnetic waves?

[RRB NTPC CBT]

Which type of radiation has very short ( < 10–3 nm) wavelengths, produced by nuclear explosions, lightning and less dramatic activity of radioactive decay?

[SSC CGL 2024]

Which colour of light from VIBGYOR has minimum energy ?

[SSC CHSL 2023]

The light rays that are used for eliminating bacteria in test tubes used in pathology labs are -

[RRB NTPC CBT]

Which of the following is NOT electromagnetic waves?

[RRB NTPC CBT]

Which of the following has the shortest wavelength?

[RRB NTPC CBT]

Which colour deviates the least when light passes through a prism?

[RRB NTPC CBT]

Which among the following waves is not an electromagnetic wave?

[SSC GD 2022]

Why do stars twinkle in the sky at night?

[RRB NTPC CBT]