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What object that can allows us to see distant object
if the speed of light in air 3 x 10 ⁸ m/s find the speed of light in diamond of refraction index 2.419
how many minutes would it take a radio wave to travel from the planet venus to earth.? (average distance from venus to earth= 28 million miles) 1 kilometer (km)= 0.6214 mile (mi), 1 km = 1000 m
a laser emits light of frequency 4.7 x 10¹⁴ sec-1. What is the wavelenght of the light in nm? Inanometer (nm) = 1 x 10 -⁹ m
a global positioning system (GPS) receives a radio signal from a satrlite in 1.7 x 10-⁴ seconds. Assuming vacuum conditions for simplicity, how far is the the GPS receiver from the satellite?
Trisha who is 1.7 m tall stands in front of a plane mirror at a distance of 2 m. What is her magnification? Write your answer in whole number.
The antique projector has a 35 mm wide image at the center of the condenser lens. The focal length of the lens is 10 cm. Specifies the width of the image projected on the screen 10 m away from the projector lens.
a ship sails away from an iceberg. determine the temperature of the air if the distance of the ship from the iceberg is 846.3m after 2.6s V0°C=331.5m/s
eight seconds after a sound was emitted by a sonic altimeter, the echo is heard. How high is the airplane if the temperature is 10°C?
a lightning flash was seen 2 seconds before the clap of thunder. If the temperature was 25°C, how far away did the lightning occur
