What is reflection and refraction of light Class 10?
Bouncing back of light rays after hitting any surface is called reflection of light. The densities of all media are different, hence the speed of light varies as it passes from one medium to the other. Bending of light rays as they pass from one medium to the other is called refraction of light.
What is reflection of light Class 10 Mcq?
(b) This device is a convex mirror of focal length 8 cm. (c) This device is a convex lens of focal length 4 cm. (d) This device is a convex lens of focal length 8 cm….Light Reflection and Refraction Class 10 MCQs Questions with Answers.
| Column I | Column II |
|---|---|
| (a) Mirror having magnification always equal to one (m = 1) | (iii) plane mirror |
What is the light reflection and refraction?
Light rays change direction when they reflect off a surface, move from one transparent medium into another, or travel through a medium whose composition is continuously changing.
What is reflection class 10th?
Hint: Reflection is the phenomenon of bouncing back of the rays of light when they fall on an obstacle. It is similar to the bouncing of a ball when we throw it on a rigid surface. Complete answer: Reflection is the phenomenon of bouncing back of the rays of light when they fall on an obstacle.
What is light in BYJU’s?
Answer: Light is an electromagnetic wave emitted by hot objects like lasers, bulbs, and the sun. Light is a type of kinetic energy that allows us to see or make objects visible with our eyes. The human eye can see light energy, which is a type of electromagnetic radiation.
What is refraction Mcq?
Refraction of Light: The bending of the ray of light passing from one medium to the other medium is called refraction.
What is refractive index 10 Mcq?
The ratio of the speed of light in a vacuum to the speed of light in a medium is called the refractive index of that medium.
What is light 10th class?
Complete answer: Light is electromagnetic radiation which shows both the properties of waves and particles. It is the form of energy and also keeps the Earth warm. It exists in the form of tiny energy packets known as photons.
What is light and reflection?
Light reflection occurs when a ray of light bounces off a surface and changes direction. From a detailed definition of ‘reflection of light’ to the different types of reflection and example images, our introductory article tells you everything you need to know about the reflection of light.
Who discovered reflection?
2.1 Reflection The Ancient Greek mathematician Euclid described the law of reflection in about 300 BCE. This states that light travels in straight lines and reflects from a surface at the same angle at which it hit it.