Virtual Labs

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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

Determination of Planck constant

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1. What LED is stands for?

a: Light Emitted Diode Explanation

Explanation

b: Light Emitter Diode Explanation

Explanation

c: Light Emitting Diode Explanation

Explanation

d: Light Eliminated Diode Explanation

Explanation

2. The value of Planck’s constant is

a: 6.626 x 10^–34 Js^–1 Explanation

Explanation

b: 6.626 x 10^–34 Js Explanation

Explanation

c: 6.626 x 10³⁴ Js Explanation

Explanation

d: 6.626 x 10^–34 J Explanation

Explanation

3. An LED is used in

a: Forward bias Explanation

Explanation

b: Reverse bias Explanation

Explanation

c: Both forward or reverse bias Explanation

Explanation

d: An unbiased state Explanation

Explanation

4. An LED is made with

a: Silicon Explanation

Explanation

b: Germanium Explanation

Explanation

c: Gallium arsenide Explanation

Explanation

d: Mercury Explanation

Explanation

5. A battery is a

a: Device that stores chemical energy and converts it to electrical energy Explanation

Explanation

b: Device that stores electrical energy as electrons Explanation

Explanation

c: Device that produces electrical energy using Earth’s magnetic field Explanation

Explanation

d: Device that stores chemical energy and converts it to mechanical energy Explanation

Explanation

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