Practice MCQ Questions and answers on Chapter 4: Dispersion of Light - Science Mcqs for Grade 7

A. convex

B. biconvex

C. concave

D. flat lenses

A. metals

B. warm air

C. cool air

D. metalloids

A. refractive index

B. nature

C. type

D. shape

A. less the light refracts

B. less the light reflects

C. more the light refracts

D. more the light reflects

A. refracted

B. reflected

C. straightened

D. reflected totally internally

A. speed of light in material /speed of light in vacuum

B. speed of light in material/speed of light in air

C. speed of light in vacuum/speed of light in material

D. speed of light in vacuum/speed of light in air

A. convex and biconvex

B. concave and biconcave

C. biconvex and biconcave

D. convex and concave

A. reflected back again and again

B. refracted again and again

C. refracted at reflex angle

D. finally finishes

A. shrinks the image

B. magnifies the image

C. sharpens the images

D. increases the contrast of image

A. eye damage

B. mirages

C. dizziness

D. blindness