MEDIUM
10th ICSE
IMPORTANT
Earn 100

Define the term work function of a metal.

Important Questions on Practice Papers for Revision

MEDIUM
10th ICSE
IMPORTANT
Self Study in Physics>Chapter 13 - Practice Papers for Revision>PRACTICE PAPER - 7>Q 4
The numbers of the turn in primary coil of a transformer is 20. If transformation ratio is 3:1, find the number of turns in the secondary coil, and the ratio of primary current to secondary current.
MEDIUM
10th ICSE
IMPORTANT
Self Study in Physics>Chapter 13 - Practice Papers for Revision>PRACTICE PAPER - 7>Q 4
Draw the time-temperature graph of a substance when it is heated from 0 °C to 90 °C (melting point is 80 °C).
MEDIUM
10th ICSE
IMPORTANT
Self Study in Physics>Chapter 13 - Practice Papers for Revision>PRACTICE PAPER - 7>Q 4
A 25 W and a 100 W  bulb is joined in parallel and connected to AC mains. Which bulb will glow brighter?
MEDIUM
10th ICSE
IMPORTANT
Self Study in Physics>Chapter 13 - Practice Papers for Revision>PRACTICE PAPER - 7>Q 4
How is a cathode ray tube used to convert an electrical signal into a visual signal?
HARD
10th ICSE
IMPORTANT
Self Study in Physics>Chapter 13 - Practice Papers for Revision>PRACTICE PAPER - 7>Q 5
A shot of mass 80 g, moving horizontally at 25 cms-1 is stopped by 5 cm of sand. What is the average force of resistance exerted?  What is the average retardation?
MEDIUM
10th ICSE
IMPORTANT
Self Study in Physics>Chapter 13 - Practice Papers for Revision>PRACTICE PAPER - 7>Q 5

Alongside diagram shows AB=25 cm, BC=75 cm. Calculate the minimum effort required to raise the load of 20 kgf.
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HARD
10th ICSE
IMPORTANT
Self Study in Physics>Chapter 13 - Practice Papers for Revision>PRACTICE PAPER - 7>Q 5

Alongside diagram shows AB=25 cm, BC=75 cm. Calculate the distance the efforts moved, if the load is raised by 5 cm.
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MEDIUM
10th ICSE
IMPORTANT
Self Study in Physics>Chapter 13 - Practice Papers for Revision>PRACTICE PAPER - 7>Q 5
Power of lens is 2.0 D. Find the focal length. What kind of lens it is?