Answer:
The energy of photon,
Explanation:
It is given that,
Voltage of anode,
We need to find the maximum energy of the photon of the x- ray radiation. The energy required to raise an electron through one volt is called electron volt.
e is charge of electron
So, the maximum energy of the x- ray radiation is . Hence, this is the required solution.
Answer:
Explanation:
The energy a single photon of an electromagnetic wave is given by
where
h is the Planck constant
c is the speed of light
is the wavelength of the photon
In this problem, we have
is the energy of the photon
So we can re-arrange the equation to find the wavelength:
Answer:
C
Explanation:
Matter is defined as any substance that has 2 properties; mass and volume.
Answer:
-4714.28N
Explanation:
Given
- Mass of person, m= 55 kg
- Car speed initially ,u =30
- Car speed finally, v=0(car comes to a halt)
- Duration for the car to come halt,t=0.35 sec
This question is based on the concept of Impulse
Impulse is the force acting in a time interval(usually very short)
it is equal to force multiplied with time and also equal to change in momentum of body
⇒
Therefore the seat belt exerts a force of -4718.28N on the person
The<u> negative sign</u> signifies that seat belt exerts force in opposite direction of Force
Sound waves travel through the air to your eardrum