interference and electromagnetic waves

What type of interference is represented in this diagram?

• Constructive

• Destructive

What type of interference is represented in the diagram?

• Constructive

• Destructive

What type of interference do noise cancelling headphones use?

• Constructive Interference

• Destructive Interference

line that joining all constructive interference we call as

• antinodal line

• nodal line

• noted line

• straight line

what happen to value of x when a decrease

• constant

• decrease

• increase

what happen to value of x when green light sources is replaced by red light sources

• decrease

• increase

• no change

A red light has a wavelength of 650nm.
It is shone through a double slit spacing 0.2mm onto a screen 2m away.
The fringe spacing is?

• 6.5 x 10 ^-6 m
• 1.6 x 10^-3 m
• 6.5 x 10^-3 m
• 1.6 x 10^-6 m

Formula di atas adalah formula interferens. Simbol a mewakili apa?

(DLP) Formula above is the interference formula. The symbol a in the formula represents what quantity?

• panjang gelombang / wavelength

• Jarak antara dua sumber gelombang / Distance between the two wave sources

• Distance between two successive antinodal lines / Jarak antara dua garisan antinod berturutan

• Jarak antara sumber gelombang dan kedudukan x diukur / Distance between the wave source and the position where x is measured

Formula di atas adalah formula interferens. Simbol x mewakili apa?

(DLP) Formula above is the interference formula. The symbol x in the formula represents what quantity?

• panjang gelombang / wavelength

• Jarak antara dua sumber gelombang / Distance between the two wave sources

• Distance between two successive antinodal lines / Jarak antara dua garisan antinod berturutan

• Jarak antara sumber gelombang dan kedudukan x diukur / Distance between the wave source and the position where x is measured

Which type of e.m waves has the lowest energy of this group?

• Radio

• Microwave

• Infrared

• Ultraviolet