Question

1. Fin the blanks
The mode of heat transfer that can take place in aus
b) The focal length of a spherical mirroris
of its radius of curvatur
2. Choose the correct option:
Which of the following positions of the object lead to the formation of a
using a concave mirror ?
at the centre of curvature between the centre of our and the focus
() at the focus
() between the focus and the pois
2. Answer the following questions in 10-20 words:
- Define retraction
b) A marble the feels cold as compared to a wooden tile on a winter moming Why?




can someone please answer ​

Answer 1

Answer:

sorry I don't know........