A light ray in air is incident on an air-to-glass boundary at an angle of 33.0° and is refracted in the glass at an angle of 18.5° with the normal. Find the index of refraction of the glass

a. 1.78
b. 2.89
c. 2.95
d. 1.72
e. 1.58


d

Physics & Space Science

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The intensity of solar radiation near the earth is 1.4 × 103 W/m2. What force is exerted by solar radiation impinging normally on a 5.0 m2 perfectly reflecting panel of an artificial satellite orbiting the earth?

A) 1.4 × 104 N B) 9.4 × 10-5 N C) 1.4 × 10-4 N D) 2.3 × 10-5 N E) 4.7 × 10-5 N

Physics & Space Science

What is the maximum kinetic energy (in eV) of a photoelectron emitted from a surface whose work function is 5.0 eV when illuminated by a light whose wavelength is 200 nm?

a. 1.9 b. 1.2 c. 3.1 d. zero e. 6.2

Physics & Space Science

Projectile Motion: A player hits a tennis ball into the air with an initial velocity of 32 m/s at 35° from the vertical. How fast is the ball moving at the highest point in its trajectory if air resistance is negligible?

Fill in the blank(s) with the appropriate word(s).

Physics & Space Science

Metals are shiny because

A) they reflect 100% of incident light. B) they are poor absorbers of light. C) their electrons vibrate to the oscillations of any incident light. D) none of the above

Physics & Space Science