Halos are caused by hexagonal ice crystals in the upper atmosphere.
Indicate whether the statement is true or false
[Ques. 2] A converging lens always forms an object's image at the focal point of the lens.
Indicate whether the statement is true or false
[Ques. 3] An image seen projected on a screen by a single lens is always inverted.
Indicate whether the statement is true or false
[Ques. 4] In the atmosphere, the intensity of scattered sunlight of longer wavelength is greater than that of shorter wavelength.
Indicate whether the statement is true or false
[Ques. 5] A diverging lens is thicker at the center than the edges.
Indicate whether the statement is true or false
[Ques. 6] A person looking through eyeglasses sees real images.
Indicate whether the statement is true or false
[Ques. 7] A convex mirror will allow you to see large areas normally hidden from your view.
Indicate whether the statement is true or false
[Ques. 8] A convex mirror will allow you to see large areas normally hidden from your view.
Indicate whether the statement is true or false
[Ques. 9] The Hubble Space Telescope has been repaired.
Indicate whether the statement is true or false
[Ques. 10] Diverging lenses have negative focal lengths.
Indicate whether the statement is true or false
Quick Reply
