COMMON PHYSICAL OBSERVATIONS (MCQs)

When a light passes from air into glass it experiences change in:

• (A) Speed
• (B) Wavelength
• (C) Both ( A & B)
• (D) Frequency

A bomb is dropped at a point from a moving aero-plane. The pilot observes that:

• (A) The bomb traverses a curved path and falls some distance ahead
• (B) The bomb drops vertically downward
• (C) The bomb remains stationary in the air for some time
• (D) The bomb traverses a curved path and falls some distance behind that point