HARD
7th CBSE
IMPORTANT
Earn 100

If the distance of an object from a convex lens is equal to twice the focal length of the lens, where is the image formed- beyond F or at 2F?

60.36% studentsanswered this correctly

Important Questions on Light

HARD
7th CBSE
IMPORTANT
Living Science 7>Chapter 16 - Light>EXERCISES>Q B
A diverging lens forms a real image of an object placed beyond F, and a virtual image of an object placed between O and F.
MEDIUM
7th CBSE
IMPORTANT
Living Science 7>Chapter 16 - Light>EXERCISES>Q B
Name the triangular piece of glass that splits white light into different colours.
MEDIUM
7th CBSE
IMPORTANT
Living Science 7>Chapter 16 - Light>EXERCISES>Q C
What do you mean by 'angle of incidence' of a ray of light on a plane mirror?
MEDIUM
7th CBSE
IMPORTANT
Living Science 7>Chapter 16 - Light>EXERCISES>Q C
What is the relationship between angle of incidence and angle of reflection in a plane mirror?
EASY
7th CBSE
IMPORTANT
Living Science 7>Chapter 16 - Light>EXERCISES>Q C
What is a real image?
MEDIUM
7th CBSE
IMPORTANT
Living Science 7>Chapter 16 - Light>EXERCISES>Q C
What do you mean by lateral inversion?
EASY
7th CBSE
IMPORTANT
Living Science 7>Chapter 16 - Light>EXERCISES>Q C
A convex rear view mirror is preferred over a plane mirror in a car. Why?
HARD
7th CBSE
IMPORTANT
Living Science 7>Chapter 16 - Light>EXERCISES>Q C
A convex lens is said to have a real focus and a concave lens a virtual focus. Why?