KCET 2025 | Ray Optics Question 1 | Physics

A ray of light passes from vaccum into a medium of refractive index $n$. If the angle of incidence is twice the angle of refraction, then the angle of incidence in terms of refractive index is

$\operatorname{Sin}^{-1}\left(\frac{n}{2}\right)$

$2 \operatorname{Cos}^{-1}\left(\frac{n}{2}\right)$

$2 \operatorname{Sin}^{-1}\left(\frac{\mathrm{n}}{2}\right)$

$\operatorname{Cos}^{-1}\left(\frac{\mathrm{n}}{2}\right)$

KCET 2025

MCQ (Single Correct Answer)

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A convex lens has power P. It is cut into two halves along its principal axis. Further one piece (out of two halves) is cut into two halves perpendicular to the principal axis as shown in figure. Choose the incorrect option for the reported lens pieces

KCET 2025 Physics - Ray Optics Question 2 English

Power of $L_2$ is $\frac{P}{2}$

Power of $L_3$ is $\frac{P}{2}$

Power of $L_1$ is $P$

Power of $L_1$ is $\frac{P}{2}$

KCET 2025

MCQ (Single Correct Answer)

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The image formed by an objective lens of a compound microscope is

Real and diminished

Real and enlarged

Virtual and enlarged

Virtual and diminished

KCET 2025

MCQ (Single Correct Answer)

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If $r$ and $r^1$ denotes the angles inside the prism having angle of prism $50^{\circ}$ considering that during interval of time from $t=0$ to $t=t, r$ varies with time as $r=10^{\circ}+t^2$. During the time $r^1$ will vary with time as

KCET 2025 Physics - Ray Optics Question 3 English

$40^{\circ}+\mathrm{t}^2$

$50^{\circ}-\mathrm{t}^2$

$50^{\circ}+\mathrm{t}^2$

$40^{\circ}-\mathrm{t}^2$

KCET Subjects