EASY
Earn 100

What is the speed of light?

50% studentsanswered this correctly

Important Questions on Light

EASY
The correct arrangement of colors in the descending order of their wavelength
HARD

The following graph depicts the inverse of magnification versus the distance between the object and lens data for a setup. The focal length of the lens used in the setup is

Question Image

Distance between the object and the lens m

EASY
The order of wavelength of visible rays is
EASY

Which one of the following has the highest wavelength?

EASY
Find the odd one out from the following.
EASY
Which of the following is correct?
EASY
Light follows wave nature because
HARD
The correct representation of wavelength intensity relationship of an ideal black body radiation at two different temperatures T1 and T2 is
EASY
A carrot looks orange in colour because of the β carotene molecule in it. This means that the β carotene molecule absorbs light of wavelengths,
EASY
Which colour of the light has the longest wavelength?
HARD
For a concave lens of focal length f, the relation between object and image distance u and v, respectively, from its pole can best be represented by (u=v is the reference line):
EASY
Red light differs from blue light as they have :
MEDIUM
A compound microscope consists of an objective lens of focal length 1 cm and an eye piece of focal length 5 cm with a separation of 10 cm. The distance between an object and the objective lens, at which the strain on the eye is minimum is n40cm. The value of n is.......
EASY
The main objective of an optical source is
MEDIUM
How will you prove that light travels in a straight line?
EASY
What is meant by rectilinear propagation of light?
EASY
Why can you not see lighted candle through a bent pipe?
EASY

The property of light travelling in a straight line is referred to as _____ propagation of light.

(Choose from the following: rectilinear / curvilinear)

MEDIUM
Rectilinear propagation of light means;
EASY
We cannot see things in the _____ of light.