What is sonar ( sound navigation and ranging )?
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Laser is an acronym for what?
Which element has the simplest absorption spectrum?
Why ate the air passengers requested to see that their fountains pen Are not completely filled ?
define rectilinear propagation of light?
how sunlight produce e.m wave in vacuum?
What is different between secondary electron image and back scattered electron image?
What is black body and what are its characteristics? : quantum physics
Mercury thermometer is constructed as shown in Figure The capillary tube has a diameter of 0.004 cm, and the bulb has a diameter of 0.250 cm. neglecting the expansion of the glass, find the change in height of the mercury column that occurs with a temperature change of 30.0 °C.
what is the difference between opticalzoom,dizitalzoom and smartzoom
Explain what is h1n1?
Who determined that the square of a planets period is proportional to the cube of its average distance from the sun?
Explain planck’s hypothesis or what the postulates of planck’s quantum theory? (Or) what are the assumptions of quantum theory of black body radiation? : quantum physics