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Light
1 / 10
Which one of the following is an incorrect statement about the formula \(\frac{1}{v}+\frac{1}{u}=\frac{1}{f}\)
2 / 10
A ray of light is observed to pass from medium 1 to medium 2, without any change in direction, when incident obliquely at the interface. What can you conclude about the refractive indices of the two media?
3 / 10
Which of the following is a correct statement?
4 / 10
A lens produces a virtual image which lies between the object and the lens. Identify the lens.
5 / 10
Which of the following statement is false?
6 / 10
A ray of light goes from water to glass. Its speed will
7 / 10
For unit magnification, the distance of an object from a concave mirror of focal length 10 cm should be
8 / 10
For the same angle of incidence of 60° in air, the angle of refraction in three different transparent liquids A, B and C are 40° 35° and 30° respectively. In which medium is the speed of light minimum?
9 / 10
A light beam is passed through a lens A placed inside a box. Identify the nature of the lens.
10 / 10
Which one of the following is an incorrect statement about virtual images?
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