JEE Main 2021 (Online) 27th August Morning Shift | Geometrical Optics Question 87 | Physics

An object is placed beyond the centre of curvature C of the given concave mirror. If the distance of the object is d₁ from C and the distance of the image formed is d₂ from C, the radius of curvature of this mirror is :

$${{2{d_1}{d_2}} \over {{d_1} - {d_2}}}$$

$${{2{d_1}{d_2}} \over {{d_1} + {d_2}}}$$

$${{{d_1}{d_2}} \over {{d_1} + {d_2}}}$$

$${{{d_1}{d_2}} \over {{d_1} - {d_2}}}$$

JEE Main 2021 (Online) 27th August Morning Shift

MCQ (Single Correct Answer)

-1

Find the distance of the image from object O, formed by the combination of lenses in the figure :

JEE Main 2021 (Online) 27th August Morning Shift Physics - Geometrical Optics Question 87 English

JEE Main 2021 (Online) 27th August Morning Shift Physics - Geometrical Optics Question 87 English

75 cm

10 cm

20 cm

infinity

JEE Main 2021 (Online) 26th August Morning Shift

MCQ (Single Correct Answer)

-1

Car B overtakes another car A at a relative speed of 40 ms^$$-$$1. How fast will the image of car B appear to move in the mirror of focal length 10 cm fitted in car A, when the car B is 1.9 m away from the car A?

4 ms^$$-$$1

0.2 ms^$$-$$1

40 ms^$$-$$1

0.1 ms^$$-$$1

JEE Main 2021 (Online) 27th July Evening Shift

MCQ (Single Correct Answer)

-1

The expected graphical representation of the variation of angle of deviation '$$\delta$$' with angle of incidence 'i' in a prism is :