Comprehensive Guide to AP EAPCET Physics>Chapter 11 - Ray Optics>Exercise 2>Q 11

MEDIUM

AP EAPCET

IMPORTANT

Earn 100

A fish looking up through the water sees the outside world contained in a circular horizon. If the refractive index of water is $\frac{4}{3}$ and the fish is $12 cm$ below the surface, the radius of this circle in $cm$ is

50% studentsanswered this correctly

Important Questions on Ray Optics

EASY

AP EAPCET

IMPORTANT

Comprehensive Guide to AP EAPCET Physics>Chapter 11 - Ray Optics>Exercise 2>Q 12

A green light is incident from the water to the air - water interface at the critical angle

(θ)

. Select the correct statement.

HARD

AP EAPCET

IMPORTANT

Comprehensive Guide to AP EAPCET Physics>Chapter 11 - Ray Optics>Exercise 2>Q 13

When plane face of planoconvex lens is silvered, it behaves as a concave mirror of focal length

30 cm

. But when its curved surface is silvered, it behaves as a concave mirror of focal length

10 cm .

The refractive index of lens material is

EASY

AP EAPCET

IMPORTANT

Comprehensive Guide to AP EAPCET Physics>Chapter 11 - Ray Optics>Exercise 2>Q 14

A point object is placed at a distance of

30 cm

from a convex mirror of focal length

30 cm

. The image will form at

EASY

AP EAPCET

IMPORTANT

Comprehensive Guide to AP EAPCET Physics>Chapter 11 - Ray Optics>Exercise 2>Q 15

Refractive index of a prism is

\sqrt{7 / 3}

and the angle of prism is

60 ° .

The minimum angle of incidence of a ray that will be transmitted through the prism is

MEDIUM

AP EAPCET

IMPORTANT

Comprehensive Guide to AP EAPCET Physics>Chapter 11 - Ray Optics>Exercise 2>Q 16

A planoconcave lens is placed on a paper on which a flower is drawn. How far above its actual position does the flower appear to be?

Question Image

EASY

AP EAPCET

IMPORTANT

Comprehensive Guide to AP EAPCET Physics>Chapter 11 - Ray Optics>Exercise 2>Q 17

Light of wavelength

4000 \overset{\circ}{A}

is incident at small angle on a prism of apex angle

4 ° .

The prism has

n_{v} = 1.5

and

n_{r} = 1.48

.The angle of dispersion produced by the prism in this light is

MEDIUM

AP EAPCET

IMPORTANT

Comprehensive Guide to AP EAPCET Physics>Chapter 11 - Ray Optics>Exercise 2>Q 18

For a prism kept in air, it is found that for an angle of incidence

60 °

, the angle of prism

A

, angle of deviation

δ

and angle of emergence '

e

' become equal. Then the refractive index of the prism is

MEDIUM

AP EAPCET

IMPORTANT

Comprehensive Guide to AP EAPCET Physics>Chapter 11 - Ray Optics>Exercise 2>Q 19

If a thin prism of glass is dipped in water then minimum deviation (with respect to air) of light produced by prism will be

({}_{a}μ_{g} = \frac{3}{2},_{a} μ_{w} = \frac{4}{3})