Question

3. If an object is placed at a distance of 15 cm in front of a plane mirror, how
for would it be from its image (2)
4. What is the speed of light in a medium of refractive index 18 V e speed in
air is 300000 km/s? [2]​

Answer 1

Answer:

15 × 2= 30

Explanation:

as we know that plane mirror shows the same distance as in real life

so , distance = distance between the plane mirror + distance on the plane mirror

so , the answer is 15 ×2 = 30