1
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0
Two converging lenses of focal length 20 cm and 40 cm are placed in contact. The effective power of the combination is
2
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
3
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.
A point object is placed on its axis. The number of images of the object are
4
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
Questions Asked from Ray Optics (MCQ (Single Correct Answer))
Number in Brackets after Paper Indicates No. of Questions
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