Question

Q1. Differentiate between the following. (2 X 4 =8)
i. Hawker and shop owner.
ii. Teachings of Kabir and Gurunanak.
iii. Weekly market and malls
iv. a cold desert and hot desert

Answer 1

A medium is denser when the speed of light gets reduced when light travels through that medium.

When water travels through water, its speed gets reduced. Hence, it is a optically denser medium.

Speed of light in air is more than speed of light in water, which means water is optically denser than air.

Still have questions? Our expert teachers can help you out

Answer 2

Answer:

your intro dear

my name is Nisha. std :11