The eye works When light hits the retina (a light-sensitive layer of tissue at the back of the eye), special cells called photoreceptors turn the light into electrical signals. These electrical signals travel from the retina through the optic nerve to the brain. Then the brain turns the signals into the images you see.
Answer:
correct answer is option 5 (The emission by the incident electron when it loses its energy in a single emission)
Explanation:
The emission by the incident electron when it loses its energy in a single emission then X-rays of minimum wavelength which is also known as X-rays of cut-off wavelength are emitted.
If potential V is applied on coolidge tube then cut-off wavelength of the continuous X-ray spectrum is related to the accelerating potential V by following equation
Angstrom/V
Answer:
it can be determined as
1. loss of life
2. damage of buildings, houses , public properties etc
3. can cause tsunami in countries like japan
4. loss of money
5. people may get homeless
The power P is defined as the energy E per unit of time t:

In our problem, the power is P=25 W and the total time is t=8.0h, so we can calculate the total energy used during this time:

The energy costs 8€ per each kwh, so we can write the following proportion:

where x is the price corresponding to 0.2 kWh. Solving the proportion we find x:

€