Courses

# Test: Refraction through Glass

## 5 Questions MCQ Test Science Class 10 | Test: Refraction through Glass

Description
This mock test of Test: Refraction through Glass for UPSC helps you for every UPSC entrance exam. This contains 5 Multiple Choice Questions for UPSC Test: Refraction through Glass (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Refraction through Glass quiz give you a good mix of easy questions and tough questions. UPSC students definitely take this Test: Refraction through Glass exercise for a better result in the exam. You can find other Test: Refraction through Glass extra questions, long questions & short questions for UPSC on EduRev as well by searching above.
QUESTION: 1

### Speed of light in vacuum is:​

Solution:

The speed of light in vacuum, commonly denoted c, is a universal physical constant important in many areas of physics. It's exact value is defined as 299 792 458 metres per second ( or approximately, 3*108 m/s)

QUESTION: 2

### When light travels from air to glass separated by sharp boundary

Solution:

When light travel in air it is easy for light to travel easily in air because there are many few restriction but when it enters in glass it have to face a lot of restrictions and its speed is reduced so it bands towards normal.

QUESTION: 3

### What will happen when a ray enters from glass to air medium ?

Solution:

When a ray of light passes from a less dense material into denser material it is bent away from the surface between the two materials. This means that in this situation the angle of refraction is always less than the angle of incidence.

QUESTION: 4

The speed of light in glass is 1.5 x 108m/s. Then refractive index of glass is

Solution:

.n=c/v
=3×10^8/15×10^8
=2

QUESTION: 5

Light travels faster in substance X as compared to substance Y, then refractive index is greater for

Solution:

As the refractive index increases, the velocity of light decreases.