Ray Optics Test

Result

Ray Optics Test - 82

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
4 / -1

The path of a refracted ray of light in a prism is parallel to the base of the prism only when the

A
Light is of a particular wavelength

B
Ray is incident normally at one face

C
Ray undergoes minimum deviation

D
Prism is made of a particular type of glass
Question 2
4 / -1

A ray incident at 15° on one refracting surface of a prism of angle 60° , suffers a deviation of 55° . What isthe angle of emergence

A
95°

B
45°

C
30°

D
None of these

Solution
Question 3
4 / -1

Two lenses having f₁ : f₂ = 2 : 3 has combination to make no dispersion. Find the ratio of dispersive power of glasses used

A
2 : 3

B
3 : 2

C
4 : 9

D
9 : 4

Solution
Question 4
4 / -1

In absorption spectrum of Na the missing wavelength(s) are

A
589 nm

B
589.6 nm

C
Both

D
None of these
Question 5
4 / -1

A ray is incident at an angle of incidence i on one surface of a prism of small angle A and emerges normally from the opposite surface. If the refractive index of the material of the prism is the angle of incidence i is nearly equal to

A
A/ μ

B
A/2μ

C
μA

D
μA/2

Solution
Question 6
4 / -1

Colour of the sky is blue due to

A
Scattering of light

B
Total internal reflection

C
Total emission

D
None of these above

Solution
Question 7
4 / -1

Which of the following spectrum have all the frequencies from high to low frequency range

A
Band spectrum

B
Continuous spectrum

C
Line spectrum

D
Discontinuous spectrum
Question 8
4 / -1

Stars are not visible in the day time because

A
Stars hide behind the sun

B
Stars do not reflect sun rays during day

C
Stars vanish during the day

D
Atmosphere scatters sunlight into a blanket of extreme brightness through which faint stars cannot be visible
Question 9
4 / -1

A
1/2

B
1/4

C
2

D
1/5

Solution
Question 10
4 / -1

A ray of light is incident on an equilateral glass prism placed on a horizontal table. For minimum deviation which of the following is true

A
PQ is horizontal

B
QR is horizontal

C
RS is horizontal

D
Either PQ or RS is horizontal