Since the sound travels from the submarine to the object AND back, it actually travelled 3625x2=7250m.
Speed of sound: 1450m/s
What is the maximum kinetic energy k0 of the photoelectrons when light of wavelength 350 nm falls on the same surface?
1 answer:
You might be interested in
Since the sound travels from the submarine to the object AND back, it actually travelled 3625x2=7250m.
Speed of sound: 1450m/s
Answer:
1.8 × 10⁻⁸ Hm
Explanation:
Given that:
The refractive index of the film = 19
The wavelength of the light = 136.8 μ m
The thickness can be calculated by using the formula shown below as:
Where, n is the refractive index of the film
is the wavelength
So, thickness is:
Thickness = 1.8 μ m
Since,
1 μ m = 10⁻⁸ Hm
So,
Thickness = 1.8 × 10⁻⁸ Hm