MHT CET 2021 20th September Morning Shift | Ray Optics Question 103 | Physics

A ray of light is incident at an angle $i$ on one face of a thin angled prism. The ray emerges normally from the other face. Refractive inder of the glass prims is $n$ and angle of prism is $A$. The value of $i$ is

$A n$

$A^2 n$

$A n^2$

$\frac{1}{A n}$

MHT CET 2020 19th October Evening Shift

MCQ (Single Correct Answer)

-0

An object is clearly seen through an astronomical telescope of length 50 cm . The focal lengths of its objective and eye-piece respectively, can be

5 cm and 45 cm

$-$45 cm and $-$5 cm

45 cm and $-$5 cm

45 cm and 5 cm

MHT CET 2020 19th October Evening Shift

MCQ (Single Correct Answer)

-0

By increasing the aperture of the objective lens, wavelength of light, focal length of the objective lens and the resolving power of an astronomical telescope respectively

is not affected, increases, increases

decreases, increases, is not affected

increases, decreases, is not affected

is not affected, increases, decreases

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