If the atmosphere were twice as thick as it currently is (extending farther into space), what effect would this have on the color the sun would appear to be? It would look whiter It would look bluer It would have no effect It would look redder

Q: If you increase fourfold the amplitude of a light wave, it's brightness increases by a factor of 4…

A: Given : The amplitude of a light wave is increased by fourfold. To find : The resulting change in…

Q: Green light has a frequency of about 5.3Hz×1014Hz5.3Hz×1014Hz.   1. Using the relationship…

A: The relationship between speed, wavelength, and frequency of light is given by, c=λf......(1)where,…

Q: How does the dispersion of light occurs? explain.

A:

Q: Why is the sky blue during fair day and why is it red during sunset?

A: This things happen due to the phenomenon scattering of light.

Q: At noon the sun appears white as a) light is least scattered b) all the colours of the white light…

A: In order to reach the earth through the atmosphere, light has to travel a shorter distance only…

Q: How are Ultraviolet waves produced?

A: Ultraviolet radiation is generated naturally from the Sun and artificial sources such as…

Q: The scale of a map is a number of kilometers per centime- ter specifying the distance on the ground…

A: a) Constructive interference of light on the screen is described as,

Q: What happens to a light ray when it travels from one material into a thicker (denser) material? Into…

A: Light waves change speed when they pass across the boundary between two substances with a different…

Q: Everyone knows the 7 colors of the rainbow: Red, Orange, Yellow, Green, Blue, Indigo, and Violet.…

A: Violet colour usually appears on the inner arch of the rainbow . At their edges, the colors of a…

Q: Calculate the wavelength of a light whose frequency is 8.0x10^15

A: Given ,     frequency of light is =  8.0*1015 Hz       we know that speed of the light (c) is = 3.0…

Q: d. Diameter of the Sun I h A Standing on the beach at sunset, you extend the tip of your finger at…

A:

Q: A device attached to a telescope which allows us to measure motion of a star toward or away is…

A: Telescopes are the optical instruments which is used to view and/or observe the planets or stars far…

Q: Why can't we see stars in day time?

A: The Earth we live is a unique planet for human to survive. It contains atmosphere with the suitable…

Q: If the sky on certain planet in the solar system were normally orange, what color would sunsets be?

A: The sunset would be blue.If the sky of a certain planet is orange at noon, it means that the…

Q: How does the speed of light in empty space compare to the speed of light in air? OSome colors travel…

A: How does the speed of light in empty space compare to the speed of light in air? In a medium a speed…

Q: Why will the leaves of a red rose be warmed more than the petals when illuminated with red light?…

A: Given: red rose

Q: Define Ultraviolet Waves And Give Some Examples Of It

A: Ultraviolet waves are electromagnetic waves whose wavelengths fall under the ultraviolet spectrum.…

Q: Do you have an idea why the sky is blue? Why the clouds are white? Why the sunset is red or reddish…

A: why the sky is blue? The gases and dust particles in the atmosphere scatter the sunlight that…

Q: How do objects appear when all of the colors of light are absorbed? Reflected? Selectively absorbed?

A: Light provides sensation to eyes so we see objects around. When light falls on an object, 3 things…

Q: The Sun appears to be red as it sets because: 1. Air absorbs red light less than other frequencies…

A: Sun colour is comprises of seven colors. They are calles as VIBGYOR. V stands for violet. I stands…

Q: 7. When a "full" moon rises, the size appears to be larger than when it is directly overhead.  Why?…

A:

Q: If the atmosphere were twice as thick as it currently is (extending farther into space), what effect…

A: If the atmosphere were twice as thick as it currently is ( extending farther into space ) , the sky…

Q: Can stars be seen from the moon’s surface in the daytime when the sun is shining?

A: On earth surface, there are atmosphere levels where scattering of sunlight occurs in daytime and…

Q: Find the approximate temperature of a red star that emits light with a wavelength of maximum…

A: Wien's displacement law states that T = (2.9 × 10-3)/λmaximum where T is the temperature of the…

Q: What is the cause of color? Why do some objects appear blue to the eye while others appear red? Is…

A: When radiation falls on an object it absorbs certain wavelength and reflects certain other…

Q: How is the wavelength of light related to its frequency?

A: Wavelength is defined as it is the distance between the identical points in the adjacent cycles of…

Q: About how much of the measured electromagnetic spectrum does light occupy?

A: An electromagnetic spectrum consists of wise range of waves.  Gamma Rays, X rays, Ultraviolet rays,…

Q: When the "full" moon rises, the color is yellowish while its color directly overhead is white.  Why?

A:

Q: Stars have a brighter light than Sun. Hence they are not visible in the morning but then why is the…

A: In the whole lunar month the moon is the single  instant that the exact time of the full moon  when…

Q: Calculate the frequency of red light,

A: Given; Calculate the frequency of red light ? Where,  Wavelength= 680 nm  Speed of light= 3×108 m/s

Q: The Sun appears to be yellow when overhead because: 1. The human eye is most sensitive to yellow. 2.…

A: The Sun appears to be yellow when overhead because the temperature of the Sun is 6000 K w2hen it is…

Q: A prism can split light up into its colors because the speed of the different colors of light in…

A:

Q: Mention and explain an everyday phenomenon in which the dispersion of light can be observed.

A: Dispersion The spreading of white light in its constituent colours (that is the spectrum of colours)…

Q: How would the frequency of a light wave change if the wavelength is doubled?   Group of answer…

A: frequency and wavelength are related in such a way that the speed of light remains constant. when…

Q: In general, larger wavelengths tend to diffract more than smaller wavelengths

A: The amount of diffraction depends on the wavelength of light, with shorter wavelengths being…

Q: Provide two words as an answer. What two entities comprise the visible spectrum?

A: Visible spectrum has wavelength range between 400nanometre to 700nanometre

Q: You can see your lecturer in class (if you are there) because O They emit visible light They reflect…

A: We can see any object when the light falls on object and then the reflected light from the object…

Q: Calculate the distance, d, between atoms using X-rays with a wavelength of 1.54 x10-10 m at an…

A:

Q: What is the relationship of wavelength with frequency? In light, what causes the differences in…

A: solution as

Q: Red sun rise occurs for the same reason as red sunsets. But sunsets are usually more colourful than…

A: The light from the sun travels through Earth’s atmosphere it undergoes scattering before it reaches…

Q: A particular beam of light has a wavelength of 2 nm, a) Calculate its period b) Calculate its…

A:

Q: If you see a red-hot star, you can be certain that its peak intensity is in the infrared region. Why…

A: The red hot star

Q: What do we see the different wavelengths of visible light as?

A: Electromagnetic radiation in the range of wavelengths is called visible light or simply light. A…

Q: We readily note the bending of light by reflection and refraction, but why aren’t we aware of…

A: