MHT CET 2020 16th October Morning Shift | Ray Optics Question 53 | Physics

A ray of light is incident at an angle $$i$$ on one face of prism of small angle $$A$$ and emerges normally from the other surface. $$\mu$$ is the refractive index of the material of the prism. The angle of incidence is

$$\frac{A}{2 \mu}$$

$$A \mu$$

$$\frac{A}{\mu}$$

$$\frac{A \mu}{2}$$

MHT CET 2020 16th October Morning Shift

MCQ (Single Correct Answer)

-0

The magnifying power of a telescope is high, if its objective and eyepiece have respectively

small focal lengths

large focal lengths

small and large focal length

large and small focal length

MHT CET 2019 3rd May Morning Shift

MCQ (Single Correct Answer)

-0

Glass has refractive index $\mu$ with respect to air and the critical angle for a ray of light going from glass to air is $\theta$. If a ray of light is incident from air on the glass with angle of incidence $\theta$, corresponding angle of refraction is

$\sin ^{-1}(\mu)$

$\sin ^{-1}\left(\frac{1}{\mu^2}\right)$

$\sin ^{-1}\left(\frac{1}{\sqrt{\mu}}\right)$

$\sin ^{-1}\left(\frac{1}{\mu}\right)$

MHT CET 2019 3rd May Morning Shift

MCQ (Single Correct Answer)

-0

The magnifying power of a telescope is nine. When it is adjusted for parallel rays, the distance between the objective and eyepiece is 20 cm . The focal length of objective and eyepiece are respectively

$10 \mathrm{~cm}, 10 \mathrm{~cm}$

$18 \mathrm{~cm}, 2 \mathrm{~cm}$

$15 \mathrm{~cm}, 5 \mathrm{~cm}$

$11 \mathrm{~cm}, 9 \mathrm{~cm}$

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