Sunil wants to see the micro organisms present in soil. He knows that he needs a microscope to see those tiny things. A microscope is an instrument used to see a small object to look bigger which helps us in a study of many tiny little species. Well, refraction also plays a huge role in the microscope.
1. What kind of lens is used in microscope ?
a. Concave lens
b. Convex lens
c. Bifocal lens
d. Plane lens
2. The image formed by a convex lens can be :
a. Virtual and magnified
b. Virtual and diminished
c. Virtual and of same size
d. Virtual image is not formed
3. Absolute refractive index of any medium is always ______ .
a. Less than 1
b. Greater than 1
c. 1
d. 0
4. Power of convex lens is _____.
a. Positive
b. Negative
5. The refracting surfaces obeys the ______.
a. Law of reflection
b. Law of refraction
