MHT CET 2024 11th May Morning Shift | Ray Optics Question 19 | Physics

When the same monochromatic ray of light travels through glass slab and through water, the number of waves in glass slab of thickness 5 cm is same as in water column of height 6 cm . If refractive index of glass is 1.56 , then refractive index of water is

1.28

1.29

1.30

1.32

MHT CET 2024 10th May Evening Shift

MCQ (Single Correct Answer)

-0

A convex lens of focal length 40 cm is in contact with a concave lens of focal length 25 cm. The power of combination is

$-1.5 \mathrm{D}$

$\mathrm{-6.5 D}$

$\mathrm{+6.5 D}$

$\mathrm{+1.5 D}$

MHT CET 2024 10th May Evening Shift

MCQ (Single Correct Answer)

-0

In compound microscope, the focal length and the aperture of the objective used is respectively

large and large

large and small.

small and large.

small and small.

MHT CET 2024 10th May Morning Shift

MCQ (Single Correct Answer)

-0

A ray of light is incident on a medium of refractive index ' $\mu$ ' at an angle of incidence ' $i$ '. On refraction in the medium ' $\delta$ ' is the angle of deviation. Then

$\frac{1}{\mu}=\cos \delta-\frac{\sin \delta}{\tan i}$

$\frac{1}{\mu}=\sin \delta-\frac{\cos \delta}{\tan i}$

$\frac{1}{\mu}=\cos \delta-\sin \delta \cdot \tan i$.

$\frac{1}{\mu}=\sin \delta-\cos \delta \cdot \tan i$

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