# Class 10 Human Eye and Colourful World MCQ Quiz Set 1

Human Eye and Colourful World Quiz – 1 Test yourself what you have studied in this chapter with the help of this quiz created by the BrainIgniter experts and improve your study accordingly. Get the result instantly by clicking on submit button. Best wishes!

# Class 10 Light Reflection and Refraction MCQ Quiz Set 2

Light Reflection and Refraction Quiz – 2 Test yourself what you have studied in this chapter with the help of this quiz created by the BrainIgniter experts and improve your study accordingly. Get the result instantly by clicking on submit button. Best wishes!

# Class 10 Light Reflection and Refraction MCQ Quiz Set 1

Light Reflection and Refraction Quiz – 1 Test yourself what you have studied in this chapter with the help of this quiz created by the BrainIgniter experts and improve your study accordingly. Get the result instantly by clicking on submit button. Best wishes!

# Electric Motor : Principle, Construction, Working and Uses

Electric Motor Electric Motor:- An electric motor is a rotating device that converts electrical energy to mechanical energy. Principle:- It is based on the principle that when a current carrying conductor is placed in a magnetic field perpendicular to it, it experiences a force. Construction:- Consider a rectangular coil ABCD placed in a magnetic field […]

# Class 10 Electricity Important Questions : Solutions

Electricity Important Questions : Solutions The potential difference between the terminals of an electric heater is 60 V when it draws a current of 4 A from the source. What current will the heater draw if the potential difference is increased to 120 V.Sol: Here, V = 60 V and I = 4 A Using, […]

# Determination of the focal length of Convex lens by obtaining the image of a distant object

Aim To determine the focal length of a convex lens by obtaining the image of a distant object. Apparatus Required Convex lens A meter scale A screen A lens holder A screen holder Theory For an object placed at infinity (practically a distant object), the image formed by a convex lens lies at the focus […]

# Determination of the focal length of Concave mirror by obtaining the image of a distant object

Aim To determine the focal length of a concave mirror by obtaining the image of a distant object. Apparatus Required Concave mirror A meter scale A screen A mirror holder A screen holder Theory A concave mirror is defined as the spherical mirror whose reflecting surface is curved inwards and follows laws of reflection of […]

# Class 10 Sources of Energy Previous Years Questions

Sources of Energy Previous Years Questions Write the energy conversion that takes place in a hydropower plant. [1 mark] [CBSE 2018] What is a dam? Why do we seek to build large dams? While building large dams, which three main problems should particularly be addressed to maintain peace among local people? Mention them. [3 marks] […]

# Class 10 Sources of Energy Notes

Sources of Energy Notes Characteristics of a good source of energy:- Should have high calorific value. Easily available. Easy to transport & store. Should be economical. Should be ecofriendly. Safe & convenient to use. Renewable source of energy:- The source of energy which can be continuously generated by natural processes & whose supply is unlimited […]

# Class 10 Human Eye and Colourful World Important Questions

Human Eye and Colourful World Important Questions The far point of a human eye has been shifted to 2 m from infinity. Name the eye defect the person is suffering from & also write its correction. Draw a ray diagram for its correction. Find the power of the lens required to correct this defect. Name […]