Convex Mirror â Basic Shape (āĻāĻ¤ā§āĻ¤āĻ˛ āĻĻāĻžāĻĒā§āĻ¨ â āĻŽā§āĻ˛āĻŋāĻ āĻāĻā§āĻ¤āĻŋ)
- A convex mirror is curved outward. āĻāĻ¤ā§āĻ¤āĻ˛ āĻĻāĻžāĻĒā§āĻ¨ āĻŦāĻžāĻšāĻŋā§°āĻĢāĻžāĻ˛ā§ āĻŦāĻžāĻāĻāĻž āĻšāĻ¯āĻŧāĨ¤
- Its reflecting surface lies on the outer side āĻāĻ¯āĻŧāĻžā§° āĻĒā§ā§°āĻ¤āĻŋāĻĢāĻ˛āĻ āĻĒā§āĻˇā§āĻ āĻŦāĻžāĻšāĻŋā§°āĻĢāĻžāĻ˛ā§ āĻĨāĻžāĻā§āĨ¤
- It is also called a diverging mirror because it makes reflected rays spread out. āĻāĻ¯āĻŧāĻžāĻ āĻ āĻĒāĻ¸āĻžā§°ā§ āĻĻāĻžāĻĒā§āĻ¨ (Diverging Mirror) āĻŦā§āĻ˛āĻŋāĻ āĻā§ā§ąāĻž āĻšāĻ¯āĻŧ, āĻāĻžā§°āĻŖ āĻ āĻĒā§ā§°āĻ¤āĻŋāĻĢāĻ˛āĻŋāĻ¤ āĻāĻŋā§°āĻŖāĻ¸āĻŽā§āĻšāĻ āĻ āĻĒāĻ¸āĻžā§°āĻŋāĻ¤ āĻā§°ā§āĨ¤
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MCQs
1. A convex mirror is curved: āĻāĻ¤ā§āĻ¤āĻ˛ āĻĻāĻžāĻĒā§āĻ¨ āĻā§āĻ¨ā§āĻĻā§°ā§ āĻŦāĻžāĻāĻāĻž āĻšāĻ¯āĻŧ ?
A) Inward | B) Outward | C) Flat | D) Wavy
Ans: B) Outward
Explanation: A convex mirror has an outward-curved reflecting surface. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻāĻ¤ā§āĻ¤āĻ˛ āĻĻāĻžāĻĒā§āĻ¨ā§° āĻĒā§ā§°āĻ¤āĻŋāĻĢāĻ˛āĻ āĻĒā§āĻˇā§āĻ āĻŦāĻžāĻšāĻŋā§°āĻĢāĻžāĻ˛ā§ āĻŦāĻžāĻāĻāĻž āĻĨāĻžāĻā§āĨ¤
2. The reflecting surface of a convex mirror lies on the: āĻāĻ¤ā§āĻ¤āĻ˛ āĻĻāĻžāĻĒā§āĻ¨ā§° āĻĒā§ā§°āĻ¤āĻŋāĻĢāĻ˛āĻ āĻĒā§āĻˇā§āĻ āĻ'āĻ¤ āĻĨāĻžāĻā§ ?
A) Inner side | B) Outer side | C) Both sides | D) Centre
Ans: B) Outer side
Explanation: In a convex mirror, the reflecting surface is on the outer side of the spherical surface. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻāĻ¤ā§āĻ¤āĻ˛ āĻĻāĻžāĻĒā§āĻ¨āĻ¤ āĻĒā§ā§°āĻ¤āĻŋāĻĢāĻ˛āĻ āĻĒā§āĻˇā§āĻ āĻŦāĻžāĻšāĻŋā§°āĻĢāĻžāĻ˛ā§ āĻĨāĻžāĻā§āĨ¤
3. A convex mirror is also known as a: āĻāĻ¤ā§āĻ¤āĻ˛ āĻĻāĻžāĻĒā§āĻ¨āĻ āĻāĻ¨ āĻāĻŋ āĻ¨āĻžāĻŽā§ā§°ā§ āĻāĻ¨āĻž āĻ¯āĻžāĻ¯āĻŧ ?
A) Converging Mirror | B) Plane Mirror | C) Diverging Mirror | D) Magnifying Mirror
Ans: C) Diverging Mirror
Explanation: A convex mirror causes reflected rays to diverge (spread out). āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻāĻ¤ā§āĻ¤āĻ˛ āĻĻāĻžāĻĒā§āĻ¨ā§ āĻĒā§ā§°āĻ¤āĻŋāĻĢāĻ˛āĻŋāĻ¤ āĻāĻŋā§°āĻŖāĻ¸āĻŽā§āĻšāĻ āĻ āĻĒāĻ¸āĻžā§°āĻŋāĻ¤ āĻā§°ā§āĨ¤ āĻ¸ā§āĻ¯āĻŧā§āĻšā§ āĻāĻ¯āĻŧāĻžāĻ āĻ āĻĒāĻ¸āĻžā§°ā§ āĻĻāĻžāĻĒā§āĻ¨ āĻŦā§āĻ˛āĻž āĻšāĻ¯āĻŧāĨ¤
4. Which of the following statements is correct about a convex mirror ? āĻāĻ¤ā§āĻ¤āĻ˛ āĻĻāĻžāĻĒā§āĻ¨ā§° āĻŦāĻŋāĻˇāĻ¯āĻŧā§ āĻ¤āĻ˛ā§° āĻā§āĻ¨āĻā§ āĻāĻā§āĻ¤āĻŋ āĻ¸āĻ āĻŋāĻ ?
A) It is curved inward. | B) It is a converging mirror. | C) Its reflecting surface lies on the outer side. | D) It always forms a real image.
Ans: C) Its reflecting surface lies on the outer side.
Explanation: A convex mirror has an outward-curved reflecting surface on the outer side and is a diverging mirror. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻāĻ¤ā§āĻ¤āĻ˛ āĻĻāĻžāĻĒā§āĻ¨ā§° āĻĒā§ā§°āĻ¤āĻŋāĻĢāĻ˛āĻ āĻĒā§āĻˇā§āĻ āĻŦāĻžāĻšāĻŋā§°āĻĢāĻžāĻ˛ā§ āĻĨāĻžāĻā§ āĻā§°ā§ āĻ āĻāĻāĻž āĻ āĻĒāĻ¸āĻžā§°ā§ āĻĻāĻžāĻĒā§āĻ¨āĨ¤
5. Which type of mirror spreads the reflected rays ? āĻā§āĻ¨ āĻ§ā§°āĻŖā§° āĻĻāĻžāĻĒā§āĻ¨ā§ āĻĒā§ā§°āĻ¤āĻŋāĻĢāĻ˛āĻŋāĻ¤ āĻāĻŋā§°āĻŖāĻ¸āĻŽā§āĻš āĻ āĻĒāĻ¸āĻžā§°āĻŋāĻ¤ āĻā§°ā§ ?
A) Plane Mirror | B) Concave Mirror | C) Convex Mirror | D) None of these
Ans: C) Convex Mirror
Explanation: A convex mirror is called a diverging mirror because it spreads reflected rays. āĻŦā§āĻ¯āĻžāĻā§āĻ¯āĻž: āĻāĻ¤ā§āĻ¤āĻ˛ āĻĻāĻžāĻĒā§āĻ¨ā§ āĻĒā§ā§°āĻ¤āĻŋāĻĢāĻ˛āĻŋāĻ¤ āĻāĻŋā§°āĻŖāĻ¸āĻŽā§āĻšāĻ āĻ āĻĒāĻ¸āĻžā§°āĻŋāĻ¤ āĻā§°ā§āĨ¤ āĻ¸ā§āĻ¯āĻŧā§āĻšā§ āĻāĻ¯āĻŧāĻžāĻ āĻ āĻĒāĻ¸āĻžā§°ā§ āĻĻāĻžāĻĒā§āĻ¨ āĻŦā§āĻ˛āĻž āĻšāĻ¯āĻŧāĨ¤
Trick
Convex Mirror = Outward + Outer Surface + Diverging Mirror // āĻāĻ¤ā§āĻ¤āĻ˛ āĻĻāĻžāĻĒā§āĻ¨ = āĻŦāĻžāĻšāĻŋā§°āĻĢāĻžāĻ˛ā§ āĻŦāĻžāĻāĻāĻž + āĻŦāĻžāĻšāĻŋā§°āĻĢāĻžāĻ˛ā§ āĻĒā§ā§°āĻ¤āĻŋāĻĢāĻ˛āĻ āĻĒā§āĻˇā§āĻ + āĻ āĻĒāĻ¸āĻžā§°ā§ āĻĻāĻžāĻĒā§āĻ¨