# Sample Paper ICSE Class 10 Physics Set C

Students can refer to the following Sample Paper ICSE Class 10 Physics Set C with Answers provided below based on the latest syllabus and examination guidelines issued for ICSE Physics. All specimen papers have been prepared covering all chapters given in ICSE Physics book for Class 10. You should also refer to ICSE Class 10 Physics Solutions.

Sample Paper ICSE Class 10 Physics Set C with Answers

Exam. : …………………..
Class : …………………….
Subject : …………………
Marks : ……… Time

Section – A
(Attempt all questions)

Q1. (a) Name a metal commonly used to make a calorimeter. Give a reason to support your answer.
(b) Why is a radio activity considered to be a nuclear phenomenon?
(c) Draw a ray diagram to show how a convex lens forms an image at infinity.
(d) What is the position of red and violet rays after white light is passed through a prism? Why is the position of colours so?
(e) A metal ball of mass 60gm falls on a concrete floor from a vertical height of 2.8m and rebounds to a height of 1.3m. Find the change in K.E. in SI units.

Q2. (a) State the SI unit of specific heat capacity and heat capacity.
(b) Illustrate through one example each, the conversion of (i) solar energy into electrical energy
(ii) chemical energy into electrical energy.
(c) Explain why a single fixed pulley is used despite no gain in mechanical advantage.
(d) A metal wire has a resistance of 60W. It is cut into three parts of equal length. Find the equivalent resistance when two parts are connected in parallel and the third part is in series with them.
(e) What is the work done by force when the force is: (i) normal to the displacement produced?
(ii) in the same direction as the displacement produced?

Q3. (a) Which cools faster land or water? Give a reason for your answer.
(b) State any two properties of Alpha (a) radiation.
(c) State two precautions that should be taken while handling radioactive substances.
(d) Scissors for cutting cloth have blades much longer than handles. Why?
(e) Two lamps, one rated 40W, 220V and the other 60W, 220V are connected in parallel combination across to a 220V supply.
Calculate the ratio between their resistance.

Q4. (a) Why is there a time delay between observing a flash and hearing a thunder?
(b) Draw a graph between displacement from mean position and time for a body executing free vibration in
(i) vacuum (ii) in a medium.
(c) You have three resistors of values 2W, 3W and 5W. How will you join them so that total resistance is more than 7W?
(d) A uniform meter scale of weight 50gf is balanced at 30cm mark when weight of 80gf and 60gf act at 5cm and 45cm mark respectively. What weight (force) must be applied at 20cm mark to balance the meter scale.

Section – B
(Attempt any four questions)

Q5. (a) Draw a simplified diagram of a lemon crusher, including direction of load and effort.
(b) (i) Name the physical quantity measured in terms of horsepower.
(ii) A nut is opened by a wrench of length 20cm. If the least force required is 2N, find the moment of force needed to loosen the nut. (iii) Explain briefly why the work done by a fielder when he takes a catch in a cricket match is negative.
(c) A block and tackle system has VR=5 (i) Draw a neat labelled diagram of a system indicating the direction of its load and effort
(ii) Rohan exerts a pull of 150 Kgf, what is the maximum load he can raise with this pulley system if its efficiency is 75%?

Q6. (a) (i) State the safe limit of sound level in terms of decibel for human hearing.
(ii) Name the characteristics of sound in relation to its wave form.
(b) A person standing between two vertical cliffs and 480m from the nearest cliff shouts. He hears the first echo after 3 second and the second echo, 2 second later. Calculate
(i) the speed of sound.
(ii) the distance of the other cliff from the person.
(c) A refrigerator converts 100gm of water at 20oC to ice at -10oC in 35 minutes. Calculate the average rate of heat extraction in terms of watts.

Take : Specific heat capacity of ice = 2.1 J/g C
o Specific heat capacity of water = 4.2J / g C
Specific latent heat of fusion of ice = 336J/g

Q7. (a) What do you understand by the following statements:
(i) The heat capacity of the body is 60J/K
(ii) The specific heat capacity of lead is 130 J/KgK
(b) State two factors upon which the heat absorbed by a body depends.
(c) Copy the diagram given below and complete the path of light ray o till it emerges out of the prism. The critical angle of glass is 42 C in your diagram, mark the angles wherever necessary.

(d) A battery of emf 12V and internal resistance 2W is connected with two resister A and B of resistance 4W and 6W respectively joined in series.

Find the
(i) current in the circuit
(ii) terminal voltage of the cell
(iii) potential difference across 6W resistor
(iv) electrical energy spent per minute in 4W

Q8. (a) Arrange a, b and g rays in ascending order with respect to their
(i) penetrating power
(ii) ionising power and
(iii) biological damage.
(b) Copy and complete the following nuclear equations by filling in the correct values in the blanks:

(c) 5 resistors of different resistances are connected together as shown in the adjoining figure. A 12V battery is connected to the arrangement. Calculate the total resistance in the circuit and the total current flowing in the circuit.

Q9. (a) A geyser has a label 4KW, 220V. What is the cost of using it for 30 minutes, If the cost of electricity is Rs.4.00 per unit?
(b) You are provided with a printed piece of paper. Using this paper, how will you differentiate between a convex and concave lens?
(c) Copy the figure and complete it to show the formation of image of the object AB. Name the lens used in the figure.

(d) What do you mean by dispersion of light? Explain its cause.