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Observing sun spots
Use the telescope that you made in a last experiment. Set it up so that it points directly at the sun and focus it so that a clear and bright image of the sun is formed on a piece of white cardboard placed a short distance from the eyepiece lens. If sun spots are there on the surface of the sun you may be able to observe them as small dark spaces of irregular outline on the image. Caution. Do not look at the sun by the telescope, unless your eyes are protected by a dark glass filter.
The meaning of pressure Calculate the area using squared paper, and measure the force per square centimetre. Standing on one foot will deal out your weight over about half the
when one moves from bright to dark place, chairs are not seen at ones. why?
Question: a) Define atmospheric pressure, stating clearly its unit in meteorology. The atmospheric pressure at the foot of hill is 1013 hPa. What would be the pressure at th
Ascan you promise a perfect job k question #Minimum 100 words accepted#
Explain Vagus Nerve - Neural Control of Respiration The rhythm and depth of respiration are controlled by the reflexes from the vagus nerve. When the lungs are inflated, the
Define Natural killer cells (NK cells) They are large sized lymphocytes, specifically equipped to kill virally infected cells, some of the virally infected cells acquire a spec
What reacts with zirconium/
Q. How is harvest maturity identified? Maturity indices can be determined on the basis of : Number of days from setting, Sight-colour, size and shape, Touch-texture, hardness o
What are the Effects of Temperature variations Different minerals present in the rock behave differently to the changing temperatures. The rocks expand on getting heated at day
Media and Distance Education: The role of media in distance education needs a specific mention. It is impIied that teaching is done from a dbtance. It is also understood that
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