Question

in experiment with the glass level so that observed that the real life incident at an angle of 60 degree with the normal at one face of the slab after refraction strikes the opposite face of the slab before I am asking out in air making an angle of 42 degree with the normal draw a labelled diagram to show the part of this way what would be the value of angle of reflection angle of emergence please answer this please.......o​

Answer 1

Answer:

increase points

W.K.T.

E=hf

and the mass of photon with energy hf = hf/c²

so ,

m = 6.63 ×10^-34 J•sec × 5×10¹⁴ sec^-1 / (3×10⁸m/s)²

by solving this we get approximately

m = 3.6834 ×10^-36 Kg ( apologies for wrong )

and m ≠ >0

which means photon has mass but

we know that photons are massless.

please tell which of either is correct

if my calculations of value of mass are incorrect then I am sorry but my question is genuine and it doesn't depend on how wrong my value is but it's ≠ 0

Part 2. what is momentum of light

part 3. what is meaning and derivation of

m = \frac{m \: naught}{ { \sqrt{1} \binom{v}{ c} }^{2} }m=

1

(

c

v

)

2

mnaught

Answer 2

Explanation:

It is nothing but only a wording problem..

According to the question

incident angle is 60°

and when it stricks on opposite side it makes 42° out of air means in the glass slab....

hence

referected angle be 42°...

I think after that u will understand....

Thank u friend...