2nd Year Physics 4th Quarter Book Paper

Q1. Multiple choice questions (Attempt all · 12 × 1 = 12)

1. The radiation emitted due to sudden deceleration of electrons is called:
   1. Bremsstrahlung
   2. Larmor radiation
   3. Fluorescence
   4. Synchrotron
2. Lithosphere is composed mainly of:
   1. Gases
   2. Rocks and minerals
   3. Ice
   4. Water
3. Which one of the following is an amphoteric oxide?
   1. ZnO
   2. Na₂O
   3. SO₂
   4. B₂O₃
4. Normal X-ray films are limited because:
   1. They are 3-D
   2. They only give shadow-like images
   3. They show color
   4. They cannot detect fractures
5. The Coriolis force equation is:
   1. Fc = 2mνω sinθ
   2. Fc = mgh
   3. Fc = mv²/r
   4. Fc = F/A
6. Colourless fuming liquid chloride is:
   1. AlCl₃
   2. SiCl₄
   3. S₂Cl₂
   4. PCl₃
7. Which of the following is a piezoelectric material?
   1. Quartz
   2. Lead zirconate titanate (PZT)
   3. Lithium niobate (LiNbO₃)
   4. All of these
8. In the northern hemisphere, Coriolis force deflects moving objects to the:
   1. Left
   2. Right
   3. Upward
   4. Downward
9. The highest oxide of chlorine is:
   1. Cl₂O
   2. ClO₂
   3. HOCl
   4. Cl₂O₇
10. Medical imaging using ultrasound is known as:
    1. Radiography
    2. Sonography
    3. MRI
    4. CT scan
11. Horizontal movement of ocean water is called:
    1. Upwelling
    2. Downwelling
    3. Currents
    4. Thermohaline circulation
12. Pythagoras’ Theorem states:
    1. a² + b² = c²
    2. a² – b² = c²
    3. ab = c²
    4. a² + c² = b²