Home
Class 12
PHYSICS
The intensity of direct sunlight before...

The intensity of direct sunlight before it passes through the
earth's atmosphere is `1.4kW//m^2`. If it is completely absorbed, find the
corresponding radiation pressure.

Text Solution

Verified by Experts

For completely absorbing surface,
`P_(rod)=(I)/(c)=(1.4xx10^3)/(3.0xx10^8)=4.66xx10^-6m^-2`
Promotional Banner

Topper's Solved these Questions

  • PHOTOELECTRIC EFFECT

    CENGAGE PHYSICS|Exercise Exercise 3.2|8 Videos

  • PHOTOELECTRIC EFFECT

    CENGAGE PHYSICS|Exercise Subjective|16 Videos

  • PHOTOELECTRIC EFFECT

    CENGAGE PHYSICS|Exercise Examples|8 Videos

  • NUCLEI

    CENGAGE PHYSICS|Exercise QUESTION BANK|59 Videos

  • RAY OPTICS

    CENGAGE PHYSICS|Exercise DPP 1.6|12 Videos

Similar Questions

Explore conceptually related problems

The intensity of direct sunlight befor it passes through the earth's atmosphere is 1.4kW|m^2 . If it is completely absorbed, find the corresponding radiation pressure.

The intensity of salr radiation just outside the earth's atmosphere is measured to be 1.4 kW//m^2 . If the radius of the sun 7xx10^8m , while the earth-sun distance is 150xx10^6km , then find i. the intensity of salr radiation at the surface of the sun. ii. the temperature at the surface of the sun assuming it to be a black body, iii. the most probable wavelength in solar radiation.

If the atmospheric gases were extremely soluble in water such that the entire atmosphere of the earth is completely absorbed by the waterbodies, resulting in zero atmosphere pressure, then how will it affect the gravitational field of earth?

An earth- orbiting satellite has a solar energy collecting panel with total area 5 m^2 If solar radiations are perpendicular and completely absorbed, the average force associated with the radiation pressure is (Solar constant = 1.4 k Wm^(-2) )

Solar constant, I_(s) is defined as intensity of solar radiation incident on the Earth. Its value is close to 1.4 kW//m^(2) . Nearly 68% of this energy is absorbed by the Earth. The average temperature of Earth is about 290 K. Radius of the Earth is R_(e) = 6000 km and that of the Sun is R_(s) = 700,000 km . Earth - Sun distance is r = 1.5 xx 10_(8) km . Assume Sun to be a black body. (a) Estimate the effective emissivity of earth. (b) Find the power of the sun. (c) Estimate the surface temperature of the Sun.

Find the direction cosines of the line passing through the two points (-2,4,-5) and

What is the force exerted by a photon beam of intensity 1.4kW//m^(2) , if it falls on a perfectly absorbing disc of radius 4 metre ?