Question

pls answer this?
because Tomarrow is my exam ​

Answer 1

Answer:

Fill in the blanks -

1) 90 degree

2) Snell's Law ( 2nd law of refraction)

3) 3 x $10^{8}$ m/s or 3 lakh km/s

4) Denser to Rarer medium

5) 2 x $10^{8}$ m/s (v = c/μ = $\frac{3 *10^{8} * 2 }{3}$)

6) Total internal reflection

MCQs -

1) (b) n1/n2 = sin r/sin i

2) 45 degree

3) Denser to Rarer medium

4) 0 degree

Hope it gives you your answer :)

And, goodluck for your exam.

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