EASY
10th West Bengal Board
IMPORTANT
Earn 100

A ray passing through the centre of curvature is reflected back along the same path.

100% studentsanswered this correctly

Important Questions on Light

EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 5 - Light>EXERCISE>Q 3
The human eye has a bi-convex lens.
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 5 - Light>EXERCISE>Q 4
Water and glass are optically rarer than air.
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 5 - Light>EXERCISE>Q 5
Light has a constant speed of 3×108 ms-1 for all colours or wavelengths in vacuum.
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 5 - Light>EXERCISE>Q 6
UV-radiations are invisible.
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 5 - Light>EXERCISE>Q 7
For different colours, wavelength is same.
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 5 - Light>EXERCISE>Q 8
Object at focus of a convex lens produces image at infinity.
EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 5 - Light>EXERCISE>Q a

Find the odd-one out from the following.

Convexo-concave lens, concavo-convex lens, equi-convex lens, plano-convex lens

EASY
10th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 10>Chapter 5 - Light>EXERCISE>Q b

Find the odd one out from the following.

Speed, wavelength, frequency, intensity.