Hi CUET aspirants, Welcome to Amans Maths Blogs (AMBIPi). In this post, you will get CUET Physics Mock Test Wave Optics AMBIPi. This CUET Physics Mock Test is of the Physics chapter Wave Optics. Before solving these CUET Physics questions, you must read CUET Physics Notes, which helps you to revise CUET Physics Syllabus and then you must need to solve CUET Previous Years Questions Papers.
CUET Physics Mock Test
CUET Physics Question No: 1
By corpuscular theory of light, the phenomenon which can be explained is
Option A : Refraction
Option B : Interference
Option C : Diffraction
Option D : Polarisation
Show/Hide Answer Key
Option A: Refraction
Corpuscular theory explains refraction of light.
CUET Exam Physics Question No: 2
According to corpuscular theory of light, the different colours of light are due to
Option A : Different electromagnetic waves
Option B : Different force of attraction among the corpuscles
Option C : Different size of the corpuscles
Option D : None
Show/Hide Answer Key
Option C: Different size of the corpuscles
According to corpuscular theory different colours of lights are due to different sizes of corpuscules.
CUET UG Physics Question No: 3
The idea of the quantum nature of light has emerged in an attempt to explain
Option A : Interference
Option B : Diffraction
Option C : Radiation spectrum of a black body
Option D : Polarisation
Show/Hide Answer Key
Option C: Radiation spectrum of a black body
According t Planks hypothesis, black bodies emit radiations in the form of photons.
CUET Domain Subject Physics Question No: 4
By Huygen’s wave theory of light, we cannot explain the phenomenon of
Option A : Interference
Option B : Diffraction
Option C : Photoelectric effect
Option D : Polarisation
Show/Hide Answer Key
Option C: Photoelectric effect
Huygen’s wave theory fails to explains the particles nature of light (i.e., photoelectric effect)
CUET BSc Physics Question No: 5
The idea of secondary wavelets for the propagation of a wave was first given by
Option A : Newton
Option B : Huygen
Option C : Maxwell
Option D : Fresnel
Show/Hide Answer Key
Option B: Huygen
The idea of secondary wavelets is given by Huygen.
CUET Entrance Exam Physics Question No: 6
Which one of the following phenomenon is not explained by Huygen’s construction of wavefront
Option A : Refraction
Option B : Reflection
Option C : Diffraction
Option D : Origin of spectra
Show/Hide Answer Key
Option D: Origin of spectra
Origin of spectra is not explained by Huygen’s theory.
CUET Exam Question No: 7
Two coherent sources of light can be obtained by
Option A : Two different lamps
Option B : Two different lamps but of the same power
Option C : Two different lamps of same power and having the same colour
Option D : None of these
Show/Hide Answer Key
Option D: None of these
In non-uniform electric field. Intensity is more, where the lines are more denser.
CUET Physics Practice Questions No: 8
The phenomenon of interference is shown by
Option A : Longitudinal mechanical waves only
Option B : Transverse mechanical waves only
Option C : Electromagnetic waves only
Option D : All the above
Show/Hide Answer Key
Option D: All the above
Interference is shown by electromagnetic as well as mechanical waves.
CUET Physics Sample Paper Question No: 9
Soap bubble appears coloured due to the phenomenon of
Option A : Interference
Option B : Diffraction
Option C : Dispersion
Option D : Reflection
Show/Hide Answer Key
Option A: Interference
Phenomenon of interference of light takes place.
CUET Physics Mock Test Question No: 10
Wave nature of light is verified by
Option A : Interference
Option B : Photoelectric effect
Option C : Reflection
Option D : Refraction
Show/Hide Answer Key
Option A: Interference
Interference of light verifies the wave nature of light.
CUET Physics Question No: 11
The frequency of light ray having the wavelength of 3800Å is
Option A : 9 × 1013 cycles/s
Option B : 1015 cycles/s
Option C : 90 cycles/s
Option D : 3000 cycles/s
Show/Hide Answer Key
Option B: 1015 cycles/s
v = c/λ = 3x 108 / 3000 x 10-8 = 1015 cycles/sec
CUET Exam Physics Question No: 12
A slit of width a is illuminated by white light. For red light ( = 6500 Å), the first minima is obtained at = 30°, then the value of a will be
Option A : 3250 Å
Option B : 6.5 × 10–4 mm
Option C : 1.24 microns
Option D : 2.6 × 10–4 cm
Show/Hide Answer Key
Option C: 1.24 microns
For first minima θ = λ/ a or a = λ/ θ
.. a = 6500 x 10-8 x 6 / π ( As 30 = π/6 red)
= 1.24 x 10-4 cm = 1.24 microns
CUET UG Physics Question No: 13
The light of wavelength 6328 Å is incident on a slit of width 0.2 mm perpendicularly, the angular width of central maxima will be
Option A : 0.36°
Option B : 0.18°
Option C : 0.72°
Option D : 0.09°
Show/Hide Answer Key
Option A: 0.36°
The angular half width of the central maxima is given by sin θ = λ/a ⇒ θ = 6328 x 10-10x 180 / 0.2 x 10-3 rad = 6382 x 10-10 x 180 / 0.2 x 10-3 x π degree = 0.18°
Total width of central maxima = 2 = 0.36°.
CUET Domain Subject Physics Question No: 14
The penetration of light into the region of geometrical shadow is called
Option A : Polarisation
Option B : Interference
Option C : Diffraction
Option D : Refraction
Show/Hide Answer Key
Option C: Diffraction
It is caused due to turning of light around corners
CUET BSc Physics Question No: 15
A diffraction is obtained by using a beam of red light. What will happen if the red light is replaced by blue light.
Option A : Bands will become narrower and crowd full together
Option B : Bands will become broader and further apart
Option C : No change will take place
Option D : Bands disappear
Show/Hide Answer Key
Option A: Bands will become narrower and crowd full together
Band width α λ, λblue< λred,hence for blue light the diffraction bands becomes narrower and crowded together.
CUET Entrance Exam Physics Question No: 16
Through which character we can distinguish the light waves from sound waves
Option A : Interference
Option B : Refraction
Option C : Polarisation
Option D : Reflection
Show/Hide Answer Key
Option C: Polarisation
Polarisation is not shown by sound waves.
CUET Exam Question No: 17
The angle of polarisation for any medium is 60°, what will be critical angle for this
Option A : sin-1 √3
Option B : tan-1 √3
Option C : cos -1 √3
Option D : sin -1 1√3
Show/Hide Answer Key
Option D: sin -1 1√3
By using μ = tan θp ⇒ μ = tan 60° = √3 also c = sin -1 (1/μ) ⇒ c = sin -1 (1 / √3)
CUET Physics Practice Questions No: 18
The angle of incidence at which reflected light is totally polarized for reflection from air to glass is
Option A : sin-1 (n)
Option B : sin -1 (1/n)
Option C : tan-1 (1/n)
Option D : tan-1 (n)
Show/Hide Answer Key
Option D: tan-1 (n)
μn = tan θp ⇒ θp = tan-1 (n)
CUET Physics Sample Paper Question No: 19
Which of following cannot be polarised
Option A : Radio waves
Option B : Ultraviolet rays
Option C : Infrared rays
Option D : Ultrasonic waves
Show/Hide Answer Key
Option D: Ultrasonic waves
Ultrasonic waves are longitudinal waves.
CUET Physics Mock Test Question No: 20
When an unpolarized light of intensity Io is incident on a polarizing sheet, the intensity of the light which does not get transmitted is
Option A : Zero
Option B :Io
Option C : 1/2 Io
Option D : 1/4 Io
Show/Hide Answer Key
Option A: 1/4 Io
If an unpolarised light is converted into plane polarised light by passing through a polaroid, it’s intensity becomes half.
