1
JEE Main 2021 (Online) 27th August Morning Shift
+4
-1
Find the distance of the image from object O, formed by the combination of lenses in the figure :

A
75 cm
B
10 cm
C
20 cm
D
infinity
2
JEE Main 2021 (Online) 26th August Morning Shift
+4
-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?
A
4 ms$$-$$1
B
0.2 ms$$-$$1
C
40 ms$$-$$1
D
0.1 ms$$-$$1
3
JEE Main 2021 (Online) 27th July Evening Shift
+4
-1
The expected graphical representation of the variation of angle of deviation '$$\delta$$' with angle of incidence 'i' in a prism is :
A
B
C
D
4
JEE Main 2021 (Online) 25th July Evening Shift
+4
-1
A prism of refractive index $$\mu$$ and angle of prism A is placed in the position of minimum angle of deviation. If minimum angle of deviation is also A, then in terms of refractive index
A
$$2{\cos ^{ - 1}}\left( {{\mu \over 2}} \right)$$
B
$${\sin ^{ - 1}}\left( {{\mu \over 2}} \right)$$
C
$${\sin ^{ - 1}}\left( {\sqrt {{{\mu - 1} \over 2}} } \right)$$
D
$${\cos ^{ - 1}}\left( {{\mu \over 2}} \right)$$
EXAM MAP
Medical
NEET