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…

CBSE Class 10 Physics The Human Eye And Its Colorful World Assignment

  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…

CBSE Class 10 Physics Sources of Energy Assignment

  Question. Which is the most popular kitchen fuel in India? Answer : LPG Question. Which method is used to produce electricity in hydroelectric power plant? Answer : By running dynamo by kinetic energy 3. Which of the following is the odd one out? a. Petroleum. b.…

CBSE Class 10 Physics Revision Assignment Set H

  1. How does the frequency of a beam of light change when it goes from air to glass? 2. For light going from air to water , anw = 4/3. Then wna has value 3. Why sky appears black from spacecrafts? 4. The refractive index of Ruby is 1.76. What is the meaning of this…

CBSE Class 10 Physics Revision Assignment Set G

  One mark questions   1. Define the term “electric current”. 2. Define the term ‘resistivity’ of a material. 3. How is a Voltmeter connected in the circuit to measure the potential difference between two points? 4. You have two metallic wires of resistances 6…

CBSE Class 10 Physics Revision Assignment Set F

  1. What is biomass? What can be done to obtain bio-energy using biomass? 2. What are the limitations in obtaining energy from wind? 3. Which is the process used to harness nuclear energy these days? 4. Explain the principle and working of a biogas plant using a…

CBSE Class 10 Physics Revision Assignment Set E

  (1) Given a resistor each of resistance R, how will you combine them to get the a) maximum & b) minimum effective resistance. & what is the ratio of the maximum to minimum resistance? (2) Two electric bulbs of 50 watt & 100 watt are given which one will…

CBSE Class 10 Physics Revision Assignment Set D

  1- What is the (a) highest (b) lowest total resistance, which can be secured by combinations of four coils of resistances 4W, 8 W, 12W and 24W?(48W, 0-5W) 2- When a 12 V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit. Find…

CBSE Class 10 Physics Revision Assignment Set C

    4) A man weighing 60kgs applies a force of 40N on a man weighing 40kgs. What is the force the man weighing 40kgs apply on the man weighing 60 kgs?   a)60 N b)40N c) will not apply any force d)cannot be determined.   5) How will the image…

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.…

CBSE Class 10 Physics Revision Assignment Set A

  SOURCE OF ENERGY 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…

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…

CBSE Class 10 Physics Light Reflection and Refraction Assignment Set A

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

CBSE Class 10 Physics Light Reflection and Refraction Assignment Set D

• Light: The natural agent that stimulates sight and makes things visible. Light is reflected from all surfaces. • Regular reflection takes place when light is incident on smooth, polished and regular surfaces. • Diffused/irregular reflection takes place from…

CBSE Class 10 Physics Light Reflection and Refraction Assignment Set C

   Q1. An object is placed at a distance of 30cm from a concave mirror of focal length 20cm. Where will the image be formed? Q2. A 2.0-cm-high object is placed perpendicular to the principal axis of a concave mirror. The distance of the object from the mirror is…