A narrow beam of monochromatic light in air is incident on a plane boundary between air and glass such that the angle between the beam and the normal is 60°. If the refractive index of the
glass is 1.5, through what angle will the beam of light be bent or deviated on refraction?

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Dalton’s model of an atom is the best described as a) a solar system b) a solid sphere c) a cloud d) a scoop of chocolate chip ice cream

The extremely high temperatures needed to trigger nuclear fusion are proposed to be generated by laser irradiating a spherical pellet of deuterium and tritium fuel of diameter 1.8 mm. (a) determine the maximum fuel temperature that can be achieved by irradiating the pellet with 200 lasers, each producing a power of 550 w. the pellet has an absorptivity 0.3 and emissivity 0.8.

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e