MHT CET 2025 19th April Evening Shift | Ray Optics Question 17 | Physics

A convex lens of focal length $\frac{1}{3} \mathrm{~m}$ forms a real, inverted image twice the size of the object. The distance of the object from the lens is

0.5 m

0.166 m

0.33 m

1 m

MHT CET 2025 19th April Morning Shift

MCQ (Single Correct Answer)

-0

For a thin prism, $\delta_1$ is the angle of deviation produced, when prism is placed in air. When the prism is immersed in water, the angle of deviation produced is $\delta_2$. Given ${ }_{\mathrm{a}} \mu_{\mathrm{g}}=\frac{3}{2}$ and ${ }_{\mathrm{a}} \mu_{\mathrm{w}}=\frac{4}{3}$. The ratio $\delta_2: \delta_1$ is

$1: 2$

$1: 4$

$1: 8$

$4: 1$

MHT CET 2024 16th May Evening Shift

MCQ (Single Correct Answer)

-0

An optician makes spectacles having a combination of a convex lens of focal length 40 cm in contact with a concave lens of focal length 25 cm . The power of this combination of lenses in dioptre is

$-6.67$

$-1.5$

$+6.67$

$+1.5$

MHT CET 2024 16th May Evening Shift

MCQ (Single Correct Answer)

-0

A ray of light travelling through a rarer medium is incident at very small angle ' $i$ ' on a glass slab and after refraction its velocity is reduced by $25 \%$. The angle of deviation is

$\frac{3 i}{4}$

$\frac{\mathrm{i}}{4}$

$\frac{\mathrm{i}}{3}$

$\frac{4 \mathrm{i}}{3}$

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