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Published on: 04/10/2022
QB365 provides a detailed and simple solution for every Possible Creative Questions in Class 10th Science Subject -Optics, English Medium. It will help Students to get more practice questions, Students can Practice these question papers in addition to score best marks.
Download Tamil Nadu 10th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
A star appears twinkling in the sky because of ______ by the atmosphere.
scattering of light
reflection of light
refraction of light
both a and b
2.
Red light is used in traffic signals because
It has highest wavelength
disperses least
red is symbol of danger
both a & b
3.
Rainbow formation is due to _____ water droplets.
Ionisation
absorption of sunlight
reflection and refraction of sunlight
reflection of sunlight
4.
5.
The splitting up of white light into colours is called
reflection
refraction
scattering
dispersion
6.
When a ray of light travels from one medium to another, it bends. This phenomenon is called.
reflection
dispersion
refraction
interference
7.
For air, the refractive index is
1
infinity
0
1
8.
When light travels from rarer to denser medium, the refracted ray is ______ the normal.
bent away
along
bent towards
just grazes the surface of separation
9.
10.
We can see objects because of
reflection
refraction
transmission
diffraction
11.
Violet and red light ______ wavelengths.
lowest, highest
highest, lowest
same
standard
12.
Velocity and wavelength of light are related by a relation
g-c⋋
\(\gamma =\frac { c }{ \lambda } \)
c=\(\gamma \)⋋
both b & c
13.
The velocity of light is _______
3 x 10-8 ms-1
3 x 108 ms-1
3 x 108 km s-1
3 x 10-8 km s-1
14.
The group of rays is ______
lines
dots
beam
none of these
15.
The path of light is ______
rays
point
lines
beam
1.
(c)
refraction of light
2.
(d)
both a & b
3.
(c)
reflection and refraction of sunlight
4.
(c)
5.
(d)
dispersion
6.
(c)
refraction
7.
(a)
1
8.
(c)
bent towards
9.
(c)
10.
(a)
reflection
11.
(a)
lowest, highest
12.
(d)
both b & c
13.
(b)
3 x 108 ms-1
14.
(c)
beam
15.
(a)
rays
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Tamilnadu Stateboard 10th Standard Subjects
Tamilnadu Stateboard Standards
