Determine the intensity from the sources

Reference no: EM13688341

Here is the problem which I am struggling on, please help me!

Problem: A point source of light emits pulses containing 75 watts of power. Determine the intensity 2 meters from the sources.

Please show how you get the answer.

Reference no: EM13688341

Questions Cloud

At what distance can you no longer resolve two pixels : Assuming that the screen is sufficiently bright, at what distance can you no longer resolve two pixels on diagonally opposite corners of the screen

What would the kinetic energy : A coherent beam of 1.937 eV photons is incident on a double slit. A screen is L = 1.8 m away from the source and the width of each slit is a = .010 mm. What would the kinetic energy of one of these electrons have to be

How far could you pedal a bicycle : Suppose your body was able to use the chemical energy of gasoline. How far could you pedal a bicycle at 15 km/hr on the energy in 3.0gal of gas

Determine the fraction of light finally transmitted : A ray of light in air is incident upon a glass plate whose index of refraction is 1.5. Determine the fraction of light finally transmitted

Determine the intensity from the sources : A point source of light emits pulses containing 75 watts of power. Determine the intensity 2 meters from the sources

Find the area of the circle of light visible on the surface : A point source of light is located at the bottom of a swimming pool 5 m deep. Find the area of the circle of light visible on the surface of the water

Find the index of refraction of water : A ray of light passes from air into water. The incident angle is 30o. Find the index of refraction of water if the angle of refraction is 22o

What is the speed of the air over the wings : A jet airplane in level flight has a mass of 8.60 x 104 kg, and the two wings have an estimated total area of 89.0 m2. what is the speed of the air over the wings

Determine the speed of light in the transparent material : A ray of light is travelling in water. It passes from the water into a transparent material at an angle of 37o. Determine the speed of light in the transparent material

User Account

All Pages