Science- Lights, Sound and Force

(i - B), (ii - D), (iii - A), (iv - C) ✘ (i - C), (ii - B), (iii - A), (iv - D) ✘ (i - D), (ii - C), (iii - A), (iv - B) ✘ (i - B), (ii - A), (iii - D), (iv - C) ✔ None of these ✔

Cloud ✘ Image ✘ Shadow ✘ Rainbow ✔ None of these ✔

Opaque ✘ Transparent ✘ Both [a] and [b] ✘ Either [a] or [b] ✔ None of these ✔

Early morning ✘ Evening ✘ Both [a] and [b] ✘ Afternoon ✔ None of these ✔

Yellow ✘ Red ✘ Black ✘ Brown ✔ None of these ✔

Water surface ✘ Bird ✘ Both [a] and [b] ✘ Either [a] or [b] ✔ None of these ✔

Violet ✘ Green ✘ Black ✘ Red ✔ None of these ✔

Speed of sound is equal to speed of light. ✘ Speed of light is much more than the speed of sound. ✘ Speed of sound is more than speed of light. ✘ All the above ✔ None of these ✔

Reflection ✘ Dispersion ✘ Diffused reflection ✘ All the above ✔ None of these ✔

White light is a combination of seven colours. ✘ Light always travel in a straight line. ✘ Light can travel in vacuum. ✘ All the above ✔ None of these ✔