Wave Nature

Question 1

Wavelength

Answer 1

Dist. Between identical pts on successive waves.

Question 2

Amplitude

Answer 2

Vertical distance from midline of a wave to the peak or trough

Question 3

Frequency

Answer 3

The number of waves that pass through a particular point in 1 second.

Question 4

Who formulated the laws of electromagnetism?

Answer 4

James maxwell in 1873

Question 5

What did maxwell depict abt electromagnetic radiation?

Answer 5

Waves produced by acc. Charges which make changing electric fields which ,in turn produce changing magnetic fields, which make changing electric fields

Question 6

Electromagentic radiation is the general term for?

Answer 6

Entire range of energy that travels through space as waves and at the speed of light

Question 7

Who was the first to demonstrate electromagnetic waves?

Answer 7

Heinrich hertz

Question 8

What is electromagnetic radiation?

Answer 8

The emission and transmission of energy in the form of electromagnetic waves.

Question 9

What is the common velocity of all electromagnetic radiation?

Answer 9

The speed of light.

Question 10

Problems with the wave theory

Answer 10

Emission of light from heated bodies cannot be explained(blackbody radiation)

The photoelectric effect states emission of electrons from metallic surfaces when light is shone on it.

Emission spectra ,the Emission of light from electronically excited gas atoms.