ICSE question bank

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192 questions

ICSE Class X 2025
Class 10 · Physics
(a) Which of the two, alternating current or direct current, produces a varying magnetic field when it
flows through a conductor?
(b) State the frequency of the alternating current supply in India.
2 marksShort answer
ICSE Class X 2025
Class 10 · Physics
Choose the correct answers to the questions from the given options. [15] (Do not copy the questions, write the correct answers only.)
A radioactive element P emits one a-particle and transforms to a new element Q.
What will be the position of the element Q in the periodic table?
MCQ
ICSE Class X 2025
Class 10 · Physics
Choose the correct answers to the questions from the given options. [15] (Do not copy the questions, write the correct answers only.)
In a closed circuit containing a bulb and a cell, the electromotive force (ε) and the terminal voltage (V) is
related as.
(Given I is current and r is internal resistance.)
MCQ
ICSE Class X 2025
Class 10 · Physics
Copper wire is wound around a steel bar FT. Current is allowed to pass through the coil for some time
and then the bar is removed.
(a) Draw only the magnetised bar FT and mark its poles.
(b) Trace two magnetic lines of force around FT clearly indicating the direction.
F T
2 marksDiagram based
ICSE Class X 2025
Class 10 · Physics
The diagram shows wiring in a meter room of a building.
Y
X Z
(a) What is the current rating of device X?
(b) What is the difference between the switch Z shown in the diagram and the switches you use to
operate different appliances at home?
(c) What is the unit of the physical quantity displayed in Y?
3 marksDiagram based
ICSE Class X 2025
Class 10 · Physics
Choose the correct answers to the questions from the given options. [15] (Do not copy the questions, write the correct answers only.)
Which one of the following combinations is the correct ascending order of electromagnetic waves in
terms of wavelength?
MCQ
ICSE Class X 2025
Class 10 · Physics
The displacement–time graph of a sound wave produced by a vibrating wire is shown below.
Displacement
Q
P R Time
S
(a) How will you adjust the tension in the wire, to reduce the length of PR?
(b) Which characteristic of sound is affected by the reduction in the length of PR?
2 marksShort answer
ICSE Class X 2025
Class 10 · Physics
A current flows through a metallic conductor for a long period of time. State the change you would
expect in its:
(a) Resistance
(b) Resistivity
2 marksShort answer
ICSE Class X 2025
Class 10 · Physics
Choose the correct answers to the questions from the given options. [15] (Do not copy the questions, write the correct answers only.)
For a real image formed by a convex lens, the ratio of I : O = 2 : 5, then the object is:
(I is the height of the image and O is the height of the object)
MCQ
ICSE Class X 2025
Class 10 · Physics
Akash takes a uniform metre scale and suspends a weight of 2 N at one end ‘X’, and a weight of 5 N on
the other end ‘Y”. He then balances the ruler horizontally on a knife edge placed at 70 cm from X. Draw
a diagram of the arrangement and calculate the weight of the ruler.
3 marksDiagram based
ICSE Class X 2025
Class 10 · Physics
(a) Name the radiations:
1. for which a quartz prism is used to study the spectrum.
2. which are used in remote sensing devices.
3. which are used in traffic signals in India.
(b) Name one property common to all electromagnetic radiations.
4 marksLong answer
ICSE Class X 2025
Class 10 · Physics
Choose the correct answers to the questions from the given options. [15] (Do not copy the questions, write the correct answers only.)
A body is acted upon by two equal and opposite forces, that are NOT along the same straight line. The
body will:
MCQ
ICSE Class X 2025
Class 10 · Physics
Choose the correct answers to the questions from the given options. [15] (Do not copy the questions, write the correct answers only.)
For a lever, a graph is plotted with load on Y-axis and effort on X-axis. Which of the following represents
the slope of the graph?
(a) Mechanical advantage (b) Velocity ratio
1 1
(c) (d)
Velocity ratio Mechanical advantage
Short answer
ICSE Class X 2025
Class 10 · Physics
Calcuate the amount of heat absorbed by 200 g of paraffin wax to melt completely at its melting point.
[Specific latent heat of fusion of paraffin wax = 146 Jg-1]
2 marksShort answer
ICSE Class X 2025
Class 10 · Physics
Curium is a radioactive element with the symbol 96 Cm named in honour of Madam Curie. The graph of
number of protons vs number of neutrons for some elements are shown below:
number of
protons
R Q P
94 S
number of
146 148 150 152 154 neutrons
(a) Which point on the graph indicates the element Cm?
(b) Which point on the graph indicates daughter nucleus after Cm undergoes radioactive decay of 1α
followed by 2β?
(c) State the mass number of the daughter nucleus.
(Attempt any four questions from this Section.)
3 marksShort answer
ICSE Class X 2025
Class 10 · Physics
Choose the correct answers to the questions from the given options. [15] (Do not copy the questions, write the correct answers only.)
A ray of light is incident normally on a face of an equilateral prism. The ray gets totally reflected at the
second refracting surface. The total deviation produced in the path of the ray is:
MCQ
ICSE Class X 2025
Class 10 · Physics
A ray of light enters a rectangular glass slab submerged in water at an angle of incidence 55°. Does this
ray undergo total internal reflection when it moves from water to glass? Justify your answer. (The critical
angle for glass–water interface is 54°)
2 marksShort answer
ICSE Class X 2025
Class 10 · Physics
Complete the following by choosing the correct answers from the bracket:
6 marksMCQ
ICSE Class X 2025
Class 10 · Physics
Draw a block and tackle system of pulleys with velocity ratio equal to 3.
3 marksDiagram based
ICSE Class X 2025
Class 10 · Physics
Choose the correct answers to the questions from the given options. [15] (Do not copy the questions, write the correct answers only.)
Assertion (A): As the level of water in a tall measuring cylinder kept under running tap rises, the pitch
of sound gradually increases.
Reason (R): Frequency of sound is inversely proportional to the length of the water column.
MCQ