NATA SERIES Physics
Optics
20 previous year questions.
Volume: 20 Ques
Yield: Medium
High-Yield Trend
12
2023 8
2021 Chapter Questions 20 MCQs
01
PYQ 2021
medium
physics ID: nata-202
If you are running towards a plane mirror at a speed of 10cm/s, at what speed does your reflection approach you ?
02
PYQ 2021
medium
physics ID: nata-202
Rays from sun converge at a point 15 cm in front of concave mirror. Where should the object be placed so that size of its image is equal to the size of the object ?
1
15 cm in front of the mirror
2
30 cm in front of the mirror
3
Between 15 cm and 30 cm in front of the mirror
4
more than 30 cm in front of the mirror
03
PYQ 2021
medium
physics ID: nata-202
Which of the following statements is true ?
1
The image formed in a plane mirror is real
2
The image in the plane mirror is of the same size as the object
3
An object is placed at a distance of 20 cm in front of plane mirror; the image formed would be 40 cm from the object
4
The image formed in a plane mirror is laterally inverted
04
PYQ 2021
medium
physics ID: nata-202
Light year is a unit of
1
Light
2
Current
3
Distance
4
Time
05
PYQ 2021
medium
physics ID: nata-202
What is the cause for twinkling of stars?
1
Atmospheric pollution
2
Atmospheric reflection
3
Atmospheric refraction
4
Atmospheric dispersion
06
PYQ 2021
medium
physics ID: nata-202
The speed of light will be the minimum while passing through which of the following?
1
Vacuum
2
Air
3
Water
4
Glass
07
PYQ 2021
medium
physics ID: nata-202
A Solar Eclipse will take place when
1
the sun is between the moon and the earth
2
the earth is between the moon and the sun
3
the moon is between the sun and the earth
4
the moon does not lie on the line joining the sun and the earth
08
PYQ 2021
medium
physics ID: nata-202
What should be the minimum height of a plane mirror required to view the full image of a person who is 6 feet tall?
1
3 feet
2
6 feet
3
4 feet
4
5 feet
09
PYQ 2023
medium
physics ID: nata-202
The hearing range of human ear is
1
20 Hz to 20000 Hz
2
less than 20 Hz
3
more than 20,000 Hz
4
20 Hz to 25,000 Hz
10
PYQ 2023
medium
physics ID: nata-202
Which of the following factors does the intensity of light depend on?
1
Frequency
2
Wavelength
3
Amplitude
4
Velocity
11
PYQ 2023
medium
physics ID: nata-202
A convex lens is dipped in a liquid whose refractive index is equal to the refractive index of the lens. What is its focal length?
1
Focal length will become zero
2
Focal length will reduce, but not become zero
3
Remains unchanged
4
Focal length will become infinite
12
PYQ 2023
medium
physics ID: nata-202
The average distance between the earth and the sun is
1
Astronomical unit
2
Light year
3
Parallactic second
4
Mole
13
PYQ 2023
medium
physics ID: nata-202
Which of the following light phenomena confirms the transverse nature of light?
1
Refraction of light
2
Diffraction of light
3
Dispersion of light
4
Polarization of light
14
PYQ 2023
medium
physics ID: nata-202
which of the following is the field of view maximum?
1
Concave mirror
2
Convex mirror
3
Plane mirror
4
Cylindrical mirror
15
PYQ 2023
medium
physics ID: nata-202
A string in a musical instrument is 50cm long and its fundamental frequency is 800Hz. If a frequency of 1000Hz is to be produced, then what is the required length of string? (Answer to be provided in cm)
16
PYQ 2023
medium
physics ID: nata-202
An organ pipe closed at one end has a fundamental frequency of 1500Hz. What is the maximum number of overtones generated by this pipe, which a normal person can hear?
17
PYQ 2023
medium
physics ID: nata-202
At resonance air column of length 20cm resonate with a tuning fork of frequency 450 Hz. ignoring end correction, the velocity of sound in air is? (Answer to be given in m/s)
18
PYQ 2023
medium
physics ID: nata-202
Standing waves are produced in 10m long stretched string. If the string vibrates in 5 segments and wave velocity is 20m/s, its frequency is? (Answer to be given in Hz)
19
PYQ 2023
medium
physics ID: nata-202
Under what condition, does a biconvex lens of glass having a certain refractive index act as a plane glass sheet when immersed in a liquid?
1
When refractive index of lens is equal to the refractive index of liquid.
2
When refractive index of lens is larger than the refractive index of liquid.
3
When refractive index of lens is lesser than the refractive index of liquid.
4
When refractive index of lens is not completely immersed in the liquid
20
PYQ 2023
medium
physics ID: nata-202
The speed of sound waves is maximum in _____ .
1
Liquids
2
Gases
3
Solids
4
All of these
About Optics - NATA
Optics is a vital chapter for NATA aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.
By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.
Frequently Asked Questions
Why focus on Optics PYQs?
Analyzing PYQs for this specific chapter reveals the most frequently tested concepts and the typical complexity of questions, allowing you to tailor your study plan efficiently.
How to best use this analysis?
Review the topic breakdown to see which sub-topics within Optics carry the most weight. Then, tackle the questions iteratively to solidify your understanding.