|
 Light Energy 40 Flashcards |
Start
|
|
What is the speed of light in air? |
Card: 1 / 40 |
|
|
3 × 10⁸ m s⁻¹ |
Card: 2 / 40 |
|
|
Fill in the blank: The bending of light when it passes from one medium to another is called ______. |
Card: 3 / 40 |
|
|
Refraction of light |
Card: 4 / 40 |
|
|
True or False: When light travels from a denser medium to a rarer medium, it bends towards the normal. |
Card: 5 / 40 |
|
|
False. It bends away from the normal. |
Card: 6 / 40 |
|
|
Riddle: I bend and change direction when I pass through glass, but I travel straight in air. What am I? |
Card: 7 / 40 |
|
|
Light |
Card: 8 / 40 |
|
|
According to Snell's law, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is called ______. |
Card: 9 / 40 |
|
|
Refractive index (μ) |
Card: 10 / 40 |
|
|
Which type of mirror has a reflecting surface that curves outward? A) Concave B) Convex C) Plane D) Spherical |
Card: 11 / 40 |
|
|
B) Convex |
Card: 12 / 40 |
|
|
Fill in the blank: The depth of water in a vessel appears to be less than its actual depth due to ______. |
Card: 13 / 40 |
|
|
Refraction |
Card: 14 / 40 |
|
|
True or False: A virtual image can be captured on a screen. |
Card: 15 / 40 |
|
|
False. A virtual image cannot be captured on a screen. |
Card: 16 / 40 |
|
|
What happens to light when it passes through a prism? |
Card: 17 / 40 |
|
|
It splits into a spectrum of colors. |
Card: 18 / 40 |
|
|
Riddle: I can reflect light and create images, but I can't be touched. What am I? |
Card: 19 / 40 |
|
|
A mirror |
Card: 20 / 40 |
|
|
 Unlock all Flashcards with EduRev Infinity Plan Starting from @ ₹99 only
|
|
|
|
Fill in the blank: The angle between the incident ray and the normal line is called the ______. |
Card: 21 / 40 |
|
|
Angle of incidence |
Card: 22 / 40 |
|
|
What type of image is formed by a concave mirror when the object is beyond the center of curvature? |
Card: 23 / 40 |
|
|
Real, inverted, and smaller in size. |
Card: 24 / 40 |
|
|
Which color of light bends the most when passing through a prism? |
Card: 25 / 40 |
|
|
Violet light |
Card: 26 / 40 |
|
|
True or False: The focus of a concave mirror is a virtual point. |
Card: 27 / 40 |
|
|
False. The focus of a concave mirror is a real point. |
Card: 28 / 40 |
|
|
What is the focal length of a concave mirror if its radius of curvature is 20 cm? |
Card: 29 / 40 |
|
|
10 cm (Focal length = 1/2 × Radius of curvature) |
Card: 30 / 40 |
|
|
Which phenomenon explains why we see the sun before it rises? |
Card: 31 / 40 |
|
|
Refraction of sunlight in the Earth's atmosphere. |
Card: 32 / 40 |
|
|
Fill in the blank: The refractive index of water is ______. |
Card: 33 / 40 |
|
|
4/3 |
Card: 34 / 40 |
|
|
What is the effect of light traveling from air to water? |
Card: 35 / 40 |
|
|
It slows down and bends towards the normal. |
Card: 36 / 40 |
|
|
Riddle: I create a spectrum when white light passes through me. What am I? |
Card: 37 / 40 |
|
|
A prism |
Card: 38 / 40 |
|
|
What is the principal axis of a mirror? |
Card: 39 / 40 |
|
|
A straight line that passes through the pole and the center of curvature. |
Card: 40 / 40 |
|
|
Completed! Keep practicing to master all of them. |
Restart
|
