1
MHT CET 2024 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A ray of light is incident at $60^{\circ}$ on one face of a prism of angle $30^{\circ}$ and the emergent ray makes $30^{\circ}$ with the incident ray. The refractive index of the prism is $\left(\sin 30^{\circ}=0 \cdot 5, \sin 60^{\circ}=\sqrt{3} / 2\right)$

A
1.732
B
1.414
C
1.5
D
1.33
2
MHT CET 2024 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A concave mirror of focal length ' $f$ ' produces an image ' $n$ ' time the size of the object. If the image is real, then the distance of the object from the mirror is

A
$(\mathrm{n}-1) \mathrm{f}$
B
$\left(\frac{\mathrm{n}-1}{\mathrm{n}}\right) \mathrm{f}$
C
$\left(\frac{n+1}{n}\right) f$
D
$(\mathrm{n}+1) \mathrm{f}$
3
MHT CET 2024 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The focal length of combination of lenses formed with lenses having power of +2.50 D and $-3.75$ D will be

A
$-20$ cm
B
$-40$ cm
C
$-60$ cm
D
$-80$ cm
4
MHT CET 2024 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Two thin lenses have a combined power of +9D. When they are separated by a distance of 20 cm , their equivalent power becomes $+\frac{27}{5} \mathrm{D}$. The power of both the lenses in dioptre are respectively

A
$ 4,5$
B
$ 3,6$
C
$2,7$
D
$ 1,8$
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