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# Download Applied Physics - II question paper 2021 | Sbte Bihar

1. In transverse wave direction of wave and oscillation of particle of medium is

• In the same direction
• In perpendicular direction
• Sometime perpendicular direction
• None of the above

2. The wavelength is

1. The distance between two consecutive crests of a wave only.
2. The distance between two consecutive throughs of a wave only.
3. Both 1 and 2 are true
4. Neither 1 nor 2 are true

3. Unit of wave length is

• Hz
• A⁰
• Kg
• Second

4. The amplitude is in the formula y = 10cm Sin (Wt + θ)

• Wt
• (Wt + θ)
• 10 cm
• Sin (Wt+θ)

5. The frequency of ultrasound is

• Less than frequency of 20 KHz
• More than frequency of 20 KHz
• Less than frequency of 20 Hz
• None of these

6. In reflection of light

• i > r
• i < r
• i = r
• None of these

7. Image in plane mirror is always

• Real
• Imaginary
• Both 1 and 2 are true
• None of them

8. Mirage is possible

• In total internal reflection
• In reflection only
• In refraction only
• None of them

9. If there are two similar charged bodies then

1. Only attraction takes place
2. Only repulsion takes place
3. Both 1 and 2 possible
4. Neither 1 and nor 2 is possible

10. The unit of electrical capacity is

• Kg
• Volt
• Ampere

11. Actually electron flows from

• Higher potential to lower potential
• Lower potential to higher potential
• When potential of two points remains the same.
• None of the above

12. In resistance colour coding the numerical value of 'Black'

• 0
• 1
• 2
• 3

13. Fe³O⁴ is

• Diamagnetic
• Paramagnetic
• Ferromagnetic
• Antimagnetic

14. Galvanometer

• Measures the amplitude of current only
• Measures the amount of current and direction both.
• Measures the potential difference only
• Measure the magnetic flux only

15. Extrinsic semiconductor is

• Pure semiconductor
• Impure semiconductor
• 1 and 2 both are true
• Neither 1 nor 2 is true

16. In P-N junction diode p is +5v and n is +2v then biasing is

• Reverse biasing
• Forward biasing
• Invalid biasing
• Both 1 and 2 are possible

17. Solar cell

• Converts light energy into electrical energy.
• Converts thermal energy into electrical energy.
• Convert thermal energy into chemical energy.
• Both 1 and 3

18. In fiber optics the signal passes in the form of

• Electrical current
• In the form of heat
• in the form of light
• in the form of mechanical wave

19. Nano size means

• 10⁹ m
• 69m
• 10-⁹ m
• 10⁹⁰ m

20. LASER is

• Highly collimated only
• Highly intense only
• Monochromatic only
• All 1, 2 and 3

Applied Physics 2 question paper

Model Paper of Applied Physics - 2

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