MHT CET 2024 4th May Morning Shift | Ray Optics Question 29 | Physics

A ray of light is incident normally on a glass slab to thickness 5 cm and refractive index 1.6. The time taken to travel by a ray from source of light to surface of slab is same as to travel through glass slab. The distance of source from the surface is

5 cm

8 cm

12 cm

24 cm

MHT CET 2024 4th May Morning Shift

MCQ (Single Correct Answer)

-0

Focal length of objective of an astronomical telescope is 1.5 m . Under normal adjustment, length of telescope is 1.56 m . Focal length of the eyepiece is

0.06 m

1.04 m

2.34 m

3.06 m

MHT CET 2024 3rd May Evening Shift

MCQ (Single Correct Answer)

-0

White light is incident on the interface of glass and air as shown in figure. If green light is just totally internally reflected, then reflected rays inside the glass contain

MHT CET 2024 3rd May Evening Shift Physics - Ray Optics Question 28 English

yellow, orange, red

violet, indigo, blue

green, yellow, orange

all colours except green

MHT CET 2024 3rd May Evening Shift

MCQ (Single Correct Answer)

-0

A convex lens of focal length ' $f$ ' produces a real image whose size is ' $n$ ' times the size of an object. The distance of the object from the lens is

$\frac{\mathrm{n}+1}{\mathrm{nf}}$

$\mathrm{f}\left(1-\frac{1}{\mathrm{n}}\right)$

$\frac{\mathrm{nf}}{\mathrm{n}+1}$

$f\left(1+\frac{1}{n}\right)$

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