1. | Why does a fish lying under water appear to be raised slightly above its actual depth? |
A. Due to diffraction of light | |
B. Due to refraction of light | |
C. Due to polarization of light | |
D. Due to reflection of light |
2. | Due to which the person present inside the water appears to be at a higher height than its actual position above the surface of the water. |
A. due to refraction of light | |
B. due to reflection of light | |
C. because of the personification of light | |
D. due to diffraction of light |
3. | A stick immersed in water appears to be bent due to which phenomenon? |
A. reflection of light | |
B. diffraction of light | |
C. Refraction of light | |
D. scattering of light |
4. | When a ray of light passes from a rarer medium to a denser medium, it |
A. goes straight | |
B. towards to the normal | |
C. moves away from normal | |
D. none of these |
5. | Total internal reflection occurs when light is |
A. from a rarer medium to a denser medium with an angle of incidence greater than the critical angle | |
B. from a denser medium to a rarer medium angle of incidence greater than critical angle. | |
C. from rarer medium to denser medium | |
D. from denser medium to rarer medium |
6. | What causes a rainbow to form? |
A. refraction and dispersion | |
B. scattering and refraction | |
C. diffraction and refraction | |
D. refraction, internal reflection, and dispersion |
7. | What is the phenomenon that creates a mirage called? |
A. personalization | |
B. diffraction | |
C. polarization | |
D. Total internal reflection |
8. | Endoscopy, a technique used to explore the stomach or other inner parts of the body is based on the phenomenon of |
A. Diffraction | |
B. Interference | |
C. Total internal reflection | |
D. Polarization |
9. | Why does the bottom of a beaker filled with liquid appear slightly raised? |
A. refraction | |
B. personalization | |
C. diffraction | |
D. reflection |
10. | Sunlight can undergo internal reflection if it enters from : |
A. glass to air | |
B. air to glass | |
C. air to water | |
D. water to glass |