CBSE Class 10 Physics Tungsten Assignment

1. Why tungsten is used exclusively for filaments of electric bulbs? 2. When you break a bar magnet in half, how many poles does each piece have? 3. Which of the compass-needle orientations in the figure below might correctly describe the magnet’s field at that point? 4.…

CBSE Class 10 Science Human Eye and Colorful World Assignment Set C

Question : Which of the following colors is least scattered by fog, dust of smoke? (a) Violet (b) Blue (c) Red (d) Yellow Answer :  C Question : Which of the following statements is correct regarding the propagation of light of different colors of white light in air…

CBSE Class 10 Physics Revision Assignment Set B

(ELECTRICITY) Types of electricity i. Static electricity ii. Current electricity Static Electricity: Static electricity is a type of electricity when electric charges develop but do not flow. For example charges developed by glass rod are rubbed with silk. Current…

CBSE Class 10 Physics Revision Assignment Set A

TOPIC- NON- CONVENTIONAL SOURCE OF ENERGY Solar Energy Solar energy • Light energy and heat energy from the sun are known as solar energy. • Sun has been radiating energy from the past 5 billion years and will continue to do so at the same rate for another 5 billion years or…

CBSE Class 10 Physics Question Bank

Short Answer Type Questions    Q.1. Will current flow more easily through a thick wire or a thin wire of the same material when connected to the same source? Why?   Q.2. A wire of uniform area of cross-section is stretched to four times its original length.…

CBSE Class 10 Science Light Reflection and Refraction Assignment Set C

Objective Questions Question : Match the following with the correct response:  (1) Refraction                  (A) Bending of light (2) Reflection                  (B) Velocity of…

CBSE Class 10 Science Light Reflection and Refraction Assignment Set E

Question. A student obtains a blurred image of a distant object on a screen using a convex lens. To obtain a distinct image on the screen he should move the lens (a) away from the screen (b) towards the screen (c) to a position very far away from the screen. (d) either towards…