120o
90o
60o
45o
30o
Correct answer is E
No explanation has been provided for this answer.
What is the approximate critical angle for total internal reflection for diamond if the refractive i...
400g of cold water is added to 200g of water at 70°C. If they are properly mixed and the temperatur...
The water manometer above is measuring the pressure of gas supply. if the specific gravity of mercur...
A man hears his echo from a nearby hill 2s after he shouted. If the frequency of his voice is 260Hz ...
Which of the following statements is correct about light and sound waves? Both ...
Lenz's law of electromagnetic induction states that ...
a ray of light which strikes a glass slab from air at normal incidence passes through the slab ...
A household refrigerator consumes electrical energy at the rate of 200 W. lf electricity costs 5 k p...
A vapor is said to be saturated when? ...
The heights of the mercury thread in a mercury-in-glass thermometer when in melting ice and then in ...
Puzzles Questions and Answers
Verbal Reasoning Questions and Answers
Data Interpretation Questions and Answers
Nigeria General Knowledge Questions and Answers
Logical Reasoning Questions and Answers
Typing Speed and Accuracy Test
Personality Test
Quantitative Reasoning Questions and Answers
Situational Judgement Questions and Answers
Abstract Reasoning Questions and Answers
Numerical Reasoning Questions and Answers
Microsoft Office Questions and Answers
Spatial Reasoning Questions and Answers
See all →