Bhai itna likhna hoga kya

Ye inhone marking scheme mein itna ghuma fir ha ke kyu likha hai part b mein.... Seedha seedha relative refractive index ka formula lagake ne likh sakte hai?

Ye inhone marking scheme mein itna ghuma fir ha ke kyu likha hai part b mein.... Seedha seedha relative refractive index ka formula lagake ne likh sakte hai?