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Recent questions in Light and Optics
chaomeinguyzyp3 2023-02-20

The cooler areas on the surface of the sun are called A) photosphereB) sunspotsC)coronaD)sun's core

aqkuax86xp0o 2023-02-19

The frequency of yellow light having wavelength 600 nm is

Jamari Bowman 2023-02-19

Light year is the unit of the Distance Time Speed Intensity of light

omreknaqec7 2023-02-18

Yellow light emitted from a sodium lamp has a wavelength ($\lambda$) of 580 nm. Calculate the frequency (ν) and wave number ($\overline{V}$) of the yellow light.

Gorjamskiw 2023-02-18

The value of $\mathrm{sin}\left(x\right)\mathrm{tan}\left(x\right)$ is equal to what?

piteraufqvw 2023-02-18

The intensity of light produced by a light source varies inversely as the square of the distance from the source. If the intensity of light produced 3 feet from a light source is 750 foot-candles, find the intensity of light produced 5 feet from the same source. [4 MARKS]

navelarp8c 2023-02-17

How to graph $y=|x-3|$?

fagiolinow8xk 2023-02-15

What is the 4th root of 80.

Julian Clements 2023-02-15

How does diffraction affect radio signals?

Elaina Mullen 2023-02-15

What is the speed of light in air and in the vacuum?

Aaliyah Hubbard 2023-02-15

The speed of light in water is $2.25×{10}^{8}$ m/s. If the speed of light in vacuum be $3×{10}^{8}$ m/s, calculate the refractive index of water.

Luis Wolf 2023-02-13

Which of the following is the largest unit of length? Light-year Astronomical unit Parsec Nothing can be decided

slithor0pd 2023-02-09

If two objects are the same size but one is heavier, the heavier one has greater density than the lighter object. A)True B)False

Giana Jensen 2023-02-09

Light travels with a speed in water than in air. A) faster B) slower C) equal

YZ1FW5f4f 2023-02-09

A concave mirror has a focal length of 20 cm. Find the position or positions of an object for which the image-size is double of the object - size.

Julian Clements 2023-02-08

A boy is trying to start a fire by focusing Sunlight on a piece of paper using an equiconvex lens of focal length 10 cm. The diameter of the Sun is 1.39*10^9 m and its mean distance from the earth is 1.5*10^11 m. What is the diameter of the Sun's image on the paper ?

Zariah Vazquez 2023-01-26