1
MHT CET 2024 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

An ink mark is made on a piece of paper. A glass slab of thickness ' $t$ ' is placed on it. The ink mark appears to be raised up through a distance ' $x$ ' when viewed at nearly normal incidence. If the refractive index of material of glass slab is ' $\mu$ ' then thickness of glass slab ' $t$ ' is given by

A
$\frac{(\mu-1)}{\mu \mathrm{x}}$.
B
$\frac{\mu \mathrm{x}}{(\mu-1)}$
C
$\frac{(\mu-1) x}{\mu}$
D
$\frac{\mu}{(\mu-1) x}$
2
MHT CET 2024 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

For a light ray to undergo total internal reflection ( $\mathrm{i}=$ angle of incidence, $\mathrm{i}_{\mathrm{c}}=$ critical angle)

A
light travels from denser to rarer medium and $\mathrm{i}<\mathrm{i}_{\mathrm{c}}$.
B
light travels from rarer to denser medium and $\mathrm{i}<\mathrm{i}_{\mathrm{c}}$.
C
light travels from denser to rarer medium and $\mathrm{i}>\mathrm{i}_{\mathrm{c}}$.
D
light travels from rarer to denser medium and $\mathrm{i}>\mathrm{i}_{\mathrm{c}}$.
3
MHT CET 2024 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

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

A
1.28
B
1.29
C
1.30
D
1.32
4
MHT CET 2024 10th May Evening Shift
MCQ (Single Correct Answer)
+1
-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

A
$-1.5 \mathrm{D}$
B
$\mathrm{-6.5 D}$
C
$\mathrm{+6.5 D}$
D
$\mathrm{+1.5 D}$
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