You see colors in a rainbow because of diffraction

Indicate whether the statement is true or false


F

Physics & Space Science

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Which pulsate faster?

a. lower mass, smaller stars b. higher mass, larger stars c. dimmer, smaller stars d. brighter, smaller stars

Physics & Space Science

Both a 50-kg sack is lifted 2 meters from the ground and a 25-kg sack is lifted 4 meters in the same time. The power expended in raising the 50-kg sack is

A) twice as much as the 25-kg sack. B) half as much as the 25-kg sack. C) the same. D) need more information

Physics & Space Science

Most asteroids are found:

A) beyond the orbit of Neptune. B) between the Earth and Sun. C) between the orbits of Mars and Jupiter. D) in the orbit of Jupiter, but 60 degrees ahead of or behind it. E) orbiting the jovian planets in captured, retrograde orbits.

Physics & Space Science

A stopping potential of 3.2 V is needed for radiation whose wavelength is 200 nm. What is the work function (in eV) of the material?

a. 4.0 b. 3.0 c. 5.0 d. 6.0 e. 2.0

Physics & Space Science