1
KCET 2024
MCQ (Single Correct Answer)
+1
-0

Electromagnetic waves are incident normally on a perfectly reflecting surface having surface area $A$. If $I$ is the intensity of the incident electromagnetic radiation and $c$ is the speed of light in vacuum, the force exerted by the electromagnetic wave on the reflecting surface is

A
$2 I A / c$
B
$L A / C$
C
$I A / 2 c$
D
$I / 2 A c$
2
KCET 2024
MCQ (Single Correct Answer)
+1
-0

The final image formed by an astronomical telescope is

A
real, erect and diminished
B
virtual, inverted and diminished
C
real, inverted and magnified
D
virtual, inverted and magnified
3
KCET 2024
MCQ (Single Correct Answer)
+1
-0

If the angle of minimum deviation is equal to angle of a prism for an equilateral prism, then the speed of light inside the prism is

A
$3 \times 10^8 \mathrm{~ms}^{-1}$
B
$2 \sqrt{3} \times 10^8 \mathrm{~ms}^{-1}$
C
$\sqrt{3} \times 10^8 \mathrm{~ms}^{-1}$
D
$\frac{\sqrt{3}}{2} \times 10^8 \mathrm{~ms}^{-1}$
4
KCET 2024
MCQ (Single Correct Answer)
+1
-0

A luminous point object $O$ is placed at a distance $2 R$ from the spherical boundary separating two transparent media of refractive indices $n_1$ and $n_2$ as shown, where $R$ is the radius of curvature of the spherical surface. If $n_1=\frac{4}{3}, n_2=\frac{3}{2}$ and $R=10 \mathrm{~cm}$, the image is obtained at a distance from $P$ equal to

KCET 2024 Physics - Ray Optics Question 12 English

A
30 cm in the rarer medium
B
30 cm in the denser medium
C
18 cm in the rarer medium
D
18 cm in the denser medium
EXAM MAP