81. Lens is made up of
82. In fibre optics communication, the signal travels in the form of
83. Persistance of vision is the principle behind
84. Red light is used in traffic signals because
85. A lady is standing in front of a plane mirror at a distance of 1 m from it. She walks 60 cm towards the mirror. The distance of her image now from herself (ignoring the thickness of the mirror) is
86. An object is placed in front of a concave mirror at a point between its center of curvature and the focus point. Where will the image be formed?
87. Assertion (A): The danger signal is made up of red colour.
Reason (R): Red colour is scattered the least.
Select the correct answer:
Reason (R): Red colour is scattered the least.
Select the correct answer:
88. Consider the following natural phenomena.
1. Terrestrial heating
2. Reflection of light
3. Refraction of light
4. Diffraction of light
Due to which of these phenomena is mirage formed?
1. Terrestrial heating
2. Reflection of light
3. Refraction of light
4. Diffraction of light
Due to which of these phenomena is mirage formed?
89. If a convex mirror is used to create a reflection of a real object, which of the following statements is false?
Read More Section(Light)
Each Section contains maximum 100 MCQs question on Light. To get more questions visit other sections.