The boiling point of a substance in city A is found to be 145 Celsius degrees. The boiling point of the same substance in city B
1 answer:
You might be interested in
Answer:
Infrared photons carry lower radiation energy than the visible light.
Explanation:
- Each photon carries an energy that is directly proportional to its frequency, being this proportionality constant the Planck's constant h.
- So, we can write the energy of a single photon as follows:
- Since there exists an inverse relationship between wavelength and frequency, and infrared radiation has longer wavelengths, this means that its frequency is lower than the one of the visible light.
- So, an infrared photon carries less energy that one of the visible light.
Answer:
The direction of the electric field will be along z-direction.
Explanation:
When electrons enter in a region where there is only magnetic field, then force exerted by the magnetic field will be
This force will deflect the electron in a direction perpendicular to its motion and also perpendicular to the magnetic field.
Whereas in the presence of electric field, force exerted by the electric field is
The direction is opposite to the direction of electric field.
As a result, electron deflected by magnetic field is nullified by the deflection by electric field. As a result, electron moves undeflected.
So, if the direction of the magnetic field is along y-direction, the direction of the electric field has to along z-direction.