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Measurement of solar energy input
A variety of instruments have been designed to measure the energy of solar radiations of all wavelengths as well as of a particular range of wavelengths. Pyrenometer (Figure is as shown below) measures the energy of sunlight of short wavelengths, indirect sunlight and scatrered. Skylight radiation. The receiver of radiation A has alternate black and white strips. These act as hot and cold thermwouple junctions respectively. This arrangement is enclosed in a spherical glass bulbwhich shields the receiving surface from disturbances by wind. But the glass container limits the wavelength response to the range of 280 nm to 3,000 nm.
When the receiver is placed in the sunlight the temperature of black strips, increases because it absorbs all radiations falling upon it. But the white strips remain cool as they reflect all incoming radiation. Thus if we connect a thermocouple between these ships, a thermo-emf develops as shown in the margin (Figure below). Galvanometer B (Figure shown below) shows a deflection indicating this emf. In this way the radiations absorbed by the receiver can be measured. Normally. the galvanometer is calibrated to give a nearly linear voltage response to incidentradiationlfluxes absorbed by the receiver.
Explain the Sedimentation - Air Sampling? It is the simplest method, which involves exposing agar plates in air for specified time at a location to be sampled. Microorganisms
Q. How execute the two complementary nucleotide chains of the DNA facilitate the replication process of the molecule? The fact that DNA molecule is made of two polynucleotide c
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Dietary Management The golden rule in the dietary management of ally fever is "feed the fever". Considering that enteric (typhoid) fever is accompanied by anorexia,
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What is pus Pus is a residual of the inflammatory reaction. It is having a mixture of fragments of dead leukocytes, infectious agents (generally bacteria) and tissues.
It is made up of three cusps, anterior, posterior and septal. The septal cusp is attached to the medial margin. The anterior cusp is attached to the superior-lateral part of the ma
Anther is the top of a stamen's filament; divided into pollen sacs in which the pollen grains are form.
Explain the Peripheral Resistance Resistance offered by arterioles or resistance vessels, as you have read above, is termed as peripheral resistance. Changes in peripheral resi
Using the Raisin Bread model from the textbook, describe the expansion of the universe. Do the galaxies expand also?
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