How could a properly calibrated pyranometer at Earth's surface be subjected to an irradiance greater than that received on a cloudless day when the atmosphere is dust free?

Q: A cavity radiator has its maximum spectral radiance at a wavelength of 6,9×10-7 m. If the body is…

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Q: A source emits 12:0 J of light of wavelength 620 nm and 80 J of light of wavelength 580 nm per…

A: (a) The total radiant flux  The expression for total radiant flux is  Total Radiant flux=Total…

Q: Suppose an intensity 306 mW/m2 lands on a detector of area 1.3 cm2 . Calculate the power generated…

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Q: A Lambertian source of radiance 10 W /m² sr is made in the shape of a ring. What is the irradiance…

A: Given, Lambertian source of radiance= 10 W/m2 srθin= arc sin 0.25θout= arc sin0.5

Q: The APOLLO 11 moon landing crew (for all you moon landing deniers out there) left a retro-reflecting…

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Q: Compute the wavelength of an X-ray with a frequency of 8.0 x 1018 Hz.

A: Given, Frequency (f) = 8.0 x 1018 Hz We know,  Speed of light (c) =3 * 108 m/s also Wavelength (λ) =…

Q: The term P represents the irradiance of the beam of light emerging from a given sample. Calculate T,…

A: Given Data The irradiance of the beam light is represented by :P' Here, the diffrent values of P,…

Q: compute the wavelength of an x-ray with a frequency of 5.0x 1018Hz

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Q: List out the material required for the Oersted experiment and mention the precautions to be taken in…

A: Some materials required for the Oersted experiment are listed below:

Q: The factors that influence the reflection of the radioelectric signal of the LOS type are due solely…

A: Radioelectric signal also a ground signal. ground wave divided into three component.surface wave,…

Q: Figure shous Two vectoza k ond mag ni kudes Fi= 300N cmd Fa= 200 N augles 300 & 45°. 4) Whe the…

A: A) Use the force parallelogram to draw the resultant R and its direction θ.

Q: What is the approximate average energy, average frequency and average wavelength associated with…

A: Given: Potential of the beam, V=23 MV=23×103 V

Q: The emergent intensity from a star's atmosphere is I1. Before the light from the star reaches the…

A: Here's a Detailed Explanation:1. Source Function: The source function ( S ) represents the amount of…

Q: When distant astronomical transients such as fast radio bursts are detected there is often a time…

A: Pulsars are high-density, fast-rotating stellar objects of small size. They emit narrow beams of…

Q: 4 Calculate the fraction of the power of a fundamental (1= m = 0) Gaussian beam that passes through…

A: The power of a beam passing through a circle of radius r and centered on the aperture is…

Q: Can we get Lamb dip spectroscopy using ordinary (not laser) light sources? Why?

A: Yes,we can get Lamb dip Spectroscopy using ordinary light sources.

Q: What is the wavelength of an FM radio station that broadcasts at 101.1 MHz? Assume speed of light…

A: Given that-Frequency, f=101.1 MHzSpeed of light, c=3×108 m/sWe know that-1 MHZ=106 HzWavelength,…

Q: How is decoherence supposed to address the Measurement Problem? Is it successful?

A: Decoherence is a theory in quantum mechanics that addresses the measurement problem by explaining…

Q: The skin depth at 10 MHz for a conductor is 1cm. Find the phase velocity of an electromagnetic wave…

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Q: What is the uncollided flux density 1 m from a 1 µCi point source of 137Cs if the source is…

A: Flux is independent of shape  It is same for all arbitrary shape. φ=qε0 ϕbeing the flux and q is the…

Q: What happens to the speed of the. ball as it goes up the plane? What is its acceleration_now?…

A: 3. Gradually decreases the speed and after some time becomes zero and then back toward the surface.…

Q: i have a laser tuned to 485.1 nm in my raman spectrometer. if i have a compound that has IR…

A: Wavelength Absorbance Wavelength of stokes line Wavelength of anti-stokes line

Q: Give me a good introduction to a Spectrophotometer ??

A: Answer:-  Spectrophotometer is an instrument that measure the amount of light passing through a…

Q: What factor limits increasing the detection efficiency of a proton recoil telescope by simply…

A: Fast neutrons have a very large penetration so a thick radiator will be considered thin while…

Q: Why is infrared spectrophotometry a good method for identifying a pure chemical substance, whereas…

A: Infrared spectrophotometry a good method for identifying a pure chemical substance cause,

Q: 13 X-rays of wavelength 2=1.5x10"m, are reflected by the (221) plane. Calculate Bragg angle from the…

A: We have:-Interplanar spacing dhkl between two planar with miller indices h k l…

Q: Millimeter-wave radar generates a narrower beam than conventional microwave radar, making it less…

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Q: What is the range delay to the moon at a distance of 384x106 m?

A: Range delay is the time required to go and back the distance.  So Range delay (T) = 2R/c Here R=…

Q: A 50 MHz sky wave takes 4.04 ms to reach a receiver via re-transmission from a satellite 600 km…

A: Velocity of waves = 3 × 108 m/s Time to reach a receiver = 4.04 × 10-3 s Height of satellite, h =…

Q: An airborn radar of an airoplane has a pulse width of 5µ sec, at a vertical height of 1nautical…

A: given