Category: Light-Reflection and Refraction

Lenses

Question 1 Define optical centre? Question 2 Define principal focus? Question 3 Define focal length? Question 4 Define principal foci? Question 5 Define first focal...

Refraction by spherical lenses

Question 1 What is a lens? Question 2 How many type of lens are them? Question 3 What is a convex lens? Question 4 What...

Refraction of light

Question 1 Define the term refraction of light? Question 2 Draw a diagram showing the bending of a ray of light when it travels from...

Images formed by Concave lens

Question 1 What are the sign conventions for measuring the distances for spherical lens? Question 2 The image formed by concave lens is seen to be...

Images formed by convex lens

Question 1 Where should an object be placed in front of a convex lens so as to obtain image on same side of lens? Question 2 The...

Refraction through a glass slab

Question 1 What is meant by lateral shift? Question 2 The refractive index of dense flint glass is 1.65 and for alcohol it is 1.36,with...

Light-Reflection

Question 1 What are luminous objects.Give example? Question 2 What are non-luminous objects.Give example? Question 3 State the laws of reflection? Question 4 What is...

Power and application of a lens

Question 1 Find the power of concave lens of focal length 2m? Question 2 Find the focal length of concave lens whose power is -2...

Refractive index

Question 1 What is refractive index? Question 2 What is the speed of light in vacuum? Question 3 What is absolute refractive index? Question 4...

Mirror Formula

Question 1 An object is placed at a distance of 10cm from a convex mirror of focal length 15cm.Find the position and nature of the...

Types of spherical mirror

Question 1 What is a concave mirror? Question 2 What is a convex mirror? Question 3 Define centre of curvature? Question 4 Define the term...