MEDIUM
10th CBSE
IMPORTANT
Earn 100

Why is the refractive index of a medium always greater than 1?

Important Questions on Light Reflection and Refraction

MEDIUM
10th CBSE
IMPORTANT
Doctor prescribed a corrective lens of power +1.5 D to Rohan. What is the focal length of the lens?
MEDIUM
10th CBSE
IMPORTANT
Doctor prescribed a corrective lens of power +1.5 D to Rohan. Is the lens mentioned here is converging or diverging?
MEDIUM
10th CBSE
IMPORTANT
State mirrors formula.
EASY
10th CBSE
IMPORTANT
What are the values of angle of incidence (i) and angle of reflection (r) for a normal incidence on mirror surface?
MEDIUM
10th CBSE
IMPORTANT
What is the power of a concave lens of focal length 2 m?
MEDIUM
10th CBSE
IMPORTANT
What type of mirror(s) always form erect image?
MEDIUM
10th CBSE
IMPORTANT
Where should an object be placed so that a real and inverted image of the same size is obtained by a convex lens?
MEDIUM
10th CBSE
IMPORTANT
Where should an object be placed so that a virtual, erect and magnified image is obtained by a concave mirror?