The frequency of the television broadcasting is?
The frequency of the television broadcasting is?
Solution and Explanation
Typically, television broadcasting signals utilize frequencies within the range of 30-300 MHz. TV and radar transmissions commonly employ the VHF (Very High Frequency) band, which spans from 30 MHz to 300 MHz.
Top Questions on Electromagnetic waves
The unit of $ \sqrt{\frac{2I}{\epsilon_0 c}} $ is: (Where $ I $ is the intensity of an electromagnetic wave, and $ c $ is the speed of light)
- JEE Main - 2025
- Physics
- Electromagnetic waves
The dimension of $ \sqrt{\frac{\mu_0}{\epsilon_0}} $ is equal to that of: (Where $ \mu_0 $ is the vacuum permeability and $ \epsilon_0 $ is the vacuum permittivity)
- JEE Main - 2025
- Physics
- Electromagnetic waves
- Which one of the following frequency ranges is used for TV transmission?
- Bihar Board XII - 2025
- Physics
- Electromagnetic waves
- X-rays are
- Bihar Board XII - 2025
- Physics
- Electromagnetic waves
- Which of the following is not an electromagnetic wave?
- Bihar Board XII - 2025
- Physics
- Electromagnetic waves
Questions Asked in AP EAMCET exam
- If \( M_1 \) and \( M_2 \) are the maximum values of \( \frac{1}{11 \cos 2x + 60 \sin 2x + 69} \) and \( 3 \cos^2 5x + 4\sin^2 5x \) respectively, then \( \frac{M_1}{M_2} = \):
- AP EAMCET - 2024
- Maxima and Minima
- The mass % of urea solution is 6. The total weight of the solution is 1000 g. What is its concentration in mol L\(^{-1}\)? (Density of water = 1.0 g mL\(^{-1}\))
(Given: C = 12u, N = 14u, O = 16u, H = 1u)- AP EAMCET - 2024
- molecular mass of polymers
- At 300 K, 6 g of urea was dissolved in 500 mL of water. What is the osmotic pressure (in atm) of the resultant solution? (R = 0.082 L atm K$^{-1}$ mol$^{-1}$) (C=12;N=14;O=16;H=1)
- AP EAMCET - 2024
- Colligative Properties
- The gravitational potential energy of a body on the surface of the Earth is \(E\). If the body is taken from the surface of the Earth to a height equal to \(150%\) of the radius of the Earth, its gravitational potential energy is:
- AP EAMCET - 2024
- Gravitational Potential Energy
The mass of particle X is four times the mass of particle Y. The velocity of particle Y is four times the velocity of X. The ratio of de Broglie wavelengths of X and Y is:
- AP EAMCET - 2024
- Molecular Polarity
Concepts Used:
Electromagnetic waves
The waves that are produced when an electric field comes into contact with a magnetic field are known as Electromagnetic Waves or EM waves. The constitution of an oscillating magnetic field and electric fields gives rise to electromagnetic waves.
Types of Electromagnetic Waves:
Electromagnetic waves can be grouped according to the direction of disturbance in them and according to the range of their frequency. Recall that a wave transfers energy from one point to another point in space. That means there are two things going on: the disturbance that defines a wave, and the propagation of wave. In this context the waves are grouped into the following two categories:
- Longitudinal waves: A wave is called a longitudinal wave when the disturbances in the wave are parallel to the direction of propagation of the wave. For example, sound waves are longitudinal waves because the change of pressure occurs parallel to the direction of wave propagation.
- Transverse waves: A wave is called a transverse wave when the disturbances in the wave are perpendicular (at right angles) to the direction of propagation of the wave.