10th Class Physics Chapter 5 TestLIGHT

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. Which of the following material has the highest refractive index?

   1. Water

   2. Glass

   3. Diamond

   4. Ice

2. When an incident ray strikes the prism at point E, it bends:

   1. Away from the normal

   2. Towards the normal

   3. Backwards

   4. It does not bend

3. Bandwidth refers to:

   1. The length of a cable

   2. How much data can be sent over a network per second

   3. The speed of an electrical signal

   4. The thickness of a wire

4. The straight imaginary line passing thorugh the center of lens is called the:

   1. Focal length

   2. Principal axis

   3. Optical center

   4. Normal

5. Which of the following phenomenon explain why a pencil appears bent when partially immersed in water?

   1. Reflection

   2. Diffraction

   3. Refraction

   4. Interference

6. Light rays travel exactly along the principle axis of a lens will:

   1. Bend at 45 degree angle

   2. No bend or change direction

   3. Reflect 180 degree

   4. Diverge immediately

7. A lens is a transparent material with two surfaces, at least one of which is:

   1. Flat

   2. Curved

   3. Opaque

   4. Metallic

8. To what specific point can acoustic lenses focus sound?

   1. A telescope lens

   2. A microphone or sensor

   3. A photographic plate

   4. A dark matter cloud

9. Which color of the visible spectrum bends the least when passing through a prism?

   1. Violet

   2. Blue

   3. Green

   4. Red

10. In a ray diagram for reflection, the Normal is define as:

    1. The line parallel to the surface

    2. The perpendicular to the surface at the point of incidence

    3. The path the reflected ray takes

    4. The angle between the incident and reflected ray