Question
If a medium has a critical angle for total internal
reflection from the medium to vacuum as 90°, what is the velocity of light in the medium? (Take c = 3.0 × 108 m/s)Solution
If c is critical angle then Sin c = [(velocity of light in medium) / (velocity of light in vacuum)] sin 90° = [(v) / (3 × 108)] v = 3 × 108 × 1 v = 3 × 108 m/s
In each of the following questions a grammatically correct and meaningful sentence is given with four words given in bold in each. Which of the followi...
In the given question, four words are printed in bold and numbered A, B, C, and D. The positions of some highlighted words may be incorrect and need to...
And traceability here understand (A) that you should be able to implies (B) exactly what use (C) at the individual level in the happened (D) of the tech...
In each of the questions given below, four words are given in bold. These four words may or may not be in their correct position. The sentence is then ...
In the question below, two sentences are given, each with four words highlighted in bold and alphabetized. From the options, choose the word from the fi...
- In each of the questions given below, four words are given in bold. These four words may or may not be in their correct position. The sentence is then foll...
RBI said “growth prospects (A) financial markets remain nervous and (B) across the world are dampening (C) are characterised by high volatility and pr...
The U.S. and the U.K. have often themselves (A) their fingers at developing countries (B) on human rights violations (C) and now find wagged (D) in the ...
Direction : In each of the following questions a grammatically correct and meaningful sentence is given with four words given in bold in each. Which of...
(i) While carbon markets came into gain (A) nearly two decades ago, they have been plagued by opacity and criticism that they only created the illusion...
Relevant for Exams:
