(a) Write the expression for the speed of light in a material medium of relative permittivity $ε$ _r and relative magnetic permeability $μ$ _r .
(b) Write the wavelength range and name of the electromagnetic waves which are used in
(i) radar systems for aircraft navigation, and
(ii) Earth satellites to observe the growth of the crops.

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!

An Intiative by Sri Chaitanya

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

(a) Speed of light in medium v,
$\frac{1}{\sqrt{μ \in}} = \frac{1}{\sqrt{μ_{0} μ_{r}} ε_{0} ε_{r}}$
(b) (i) Microwave range 0.1mt – 1mm (10^-3m – 10^-1m)
(ii) Infrared waves range 1 𝑚𝑚 − 700𝑛𝑚

Watch 3-min video & get full concept clarity

tricks from toppers of Infinity Learn

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Books for IIT JEE

Best Books for NEET

🔥 Start Your JEE/NEET Prep at Just ₹1999 / month - Limited Offer! Check Now!

Get Expert Academic Guidance – Connect with a Counselor Today!

Result Producing online coaching for JEE/NEET of south India

Largest All India Test Series for JEE/NEET

Best Books for IIT JEE

Best Books for NEET