Electromagnetic Radiation and Its Wave-Like Nature (Grade 10 NSC Matric Physical Sciences): Quizzes

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Electromagnetic Radiation and Its Wave-Like Nature
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What is electromagnetic radiation?

Energy that travels through space as waves

Which property distinguishes EM waves from sound waves?

EM waves can travel through vacuum

What is the speed of light in vacuum?

3×1083 \times 10^8 m⋅s−1^{-1}

What is wave-particle duality?

EM radiation shows wave or particle nature

What is a photon?

A quantum (energy packet) of light

What creates electromagnetic waves?

Accelerating charges

What is mutual induction in EM waves?

Fields regenerate each other continuously

How do electric and magnetic fields oscillate in EM waves?

At right angles to each other

Calculate frequency if λ=5.0×10−7\lambda = 5.0 \times 10^{-7} m.

6.0×10146.0 \times 10^{14} Hz

What is frequency if wavelength is 300 nm?

1.0×10151.0 \times 10^{15} Hz

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