Answer: exotic medium can be engineered to slow light
Explanation:
The energy of a single photon at the transmitted frequency is 
Answer: Option b
<u>Solution:</u>
Energy of photon is given as 
Where c is the velocity of Light 
h is planck's constant 
λ is the wavelength of photon
Energy of photon can be rewritten as 
Where f is the frequency of photon
Frequency of photon is obtained by dividing velocity of light by wavelength of photon.
The dimension of soccer field in ft is 377.315 ft long and 277.885 ft in width.
The dimension of soccer field in ft is 4527.78 in long and 3334.62 in in width.
As it is given that 1 m =3.281 ft
Therefore the length of the soccer field in ft is
115*3.281=377.315 ft
And width of the field is 85*3.281=277.885 ft
We know that 1 ft =12 in
Therefore the length of the soccer field in in is
377.315*12=4527.78 in
And width of the field is 277.885 *12=3334.62 in
Answer: frequency is 20000hz
Explanation:
Velocity=340m/s
Wavelength=0.017m
Frequency=velocity ➗ wavelength
Frequency=340 ➗ 0.017
Frequency=20000hz
