1
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0

The magnifying power of a telescope is 9. When it is adjusted for parallel rays, the distance between the objective and eyepiece is 20 cm. The focal length of lenses are

A
10 cm, 10 cm
B
15 cm, 5 cm
C
18 cm, 2 cm
D
11 cm, 9 cm
2
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

A convex lens is made of 3 layers of glass of 3 different materials as in the figure.

COMEDK 2020 Physics - Ray Optics Question 10 English

A point object is placed on its axis. The number of images of the object are

A
3
B
4
C
1
D
2
3
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

A ray of light suffers minimum deviation in equilateral prism P. Additional prisms Q and R of identical shape and of same material as that of P are now combined as shown in figure. The ray will now suffer

COMEDK 2020 Physics - Ray Optics Question 9 English

A
greater deviation
B
no deviation
C
same deviation as before
D
total internal reflection
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