The concave lens is also known as
A. converging lens
B. diverging lens
C. dispersing lens
D. conducting lens
Related Questions on Chapter 4: Dispersion of Light - Science Mcqs for Grade 7
If light enters any substance with refractive index, it is
A. perpendicular
B. at a certain angle
C. parallel
D. at critical angle
Thin flexible glass rods to transfer data from one region to another are known as
A. glass cables
B. reflection fibers
C. optical fibers
D. copper fibers
A. causes tricks in the air
B. causes tricks on our eyes
C. causes tricks on our brain
D. damages our eyes
Screens of monitors and televisions are made by
A. red dots
B. red, yellow and green dots
C. red, green and blue dots
D. white dots