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1
AIIMS 2019
MCQ (Single Correct Answer)
+1
-0.33

Calculate the focal length of given lens if the magnification is $$-$$0 5.

AIIMS 2019 Physics - Geometrical Optics Question 8 English

A
6.66 cm
B
5.44 cm
C
3.88 cm
D
1.38 cm
2
AIIMS 2018
MCQ (Single Correct Answer)
+1
-0.33

Assertion A convex mirror always make a virtual image.

Reason The ray always diverge after reflection from the convex mirror.

A
Both Assertion and Reason are correct, Reason is the correct explanation of Assertion
B
Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion
C
Assertion is correct and Reason is incorrect
D
Assertion is incorrect and Reason is correct
3
AIIMS 2017
MCQ (Single Correct Answer)
+1
-0.33

A lens of refractive index $$\mu$$ is put in a liquid of refractive index $$\mu^{\prime}$$. If the focal length of lens in air is $$f$$, then its focal length in liquid will be

A
$$\frac{-f \mu^{\prime}(\mu-1)}{\left(\mu^{\prime}-\mu\right)}$$
B
$$\frac{-f\left(\mu^{\prime}-\mu\right)}{\mu^{\prime}(\mu-1)}$$
C
$$-\frac{\mu^{\prime}(\mu-1)}{f\left(\mu^{\prime}-\mu\right)}$$
D
$$\frac{f \mu^{\prime} \mu}{\left(\mu-\mu^{\prime}\right)}$$
4
AIIMS 2017
MCQ (Single Correct Answer)
+1
-0.33

In the given figure, the angle of reflection is

AIIMS 2017 Physics - Geometrical Optics Question 5 English

A
30$$^\circ$$
B
60$$^\circ$$
C
45$$^\circ$$
D
None of these
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