Advertisements
Advertisements
प्रश्न
Write the following radiations in ascending order with respect to their frequencies:
X-rays, microwaves, UV rays and radio waves.
उत्तर
The given radiations can be arranged in ascending order with respect to their frequencies as:
Radio waves < Microwaves < UV rays < X-rays
APPEARS IN
संबंधित प्रश्न
How are electromagnetic waves produced?
Do electromagnetic waves carry energy and momentum ?
How are electric vector `(vec "E")`, magnetic vector `(vec "B")` and velocity vector `(vec "C")` oriented in an electromagnetic wave?
Consider a parallel plate capacitor whose plates are closely spaced. Let R be the radius of the plates and the current in the wire connected to the plates is 5 A, calculate the displacement current through the surface passing between the plates by directly calculating the rate of change of flux of electric field through the surface.
The velocity of light in vacuum can be changed by changing
Which of the following are not electromagnetic waves?
Professor C.V Raman surprised his students by suspending freely a tiny light ball in a transparent vacuum chamber by shining a laser beam on it. Which property of EM waves was he exhibiting? Give one more example of this property.
Which of the following statement is NOT true about the properties of electromagnetic waves?
A plane electromagnetic wave of frequency 500 MHz is travelling in a vacuum along a y-direction.
At a particular point in space and time, `vec"B"` = 8.0 × 10-8 `hat"Z"`T. The value of the electric field at this point is ______.
(speed of light = 3 × 108 ms-1)
`hat x, hat y, hat z` are unit vectors along x, y, and Z directions.
A plane electromagnetic wave with frequency of 30 MHz travels in free space. At particular point in space and time, electric field is 6 V/m. The magnetic field at this point will be x × 10-8 T. The value of x is ______.
