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Physics 9 Chapter 1 - Physical Quantities and Measurements - 21
1.
How the meniscus of the mercury is curved?
a) Upwards
b) Not curves
c) None of these
d) Downwards
2.
What is the correct method of noting down the level of a liquid in cylinder?
a) Keeping the eye below the level of liquid
b) Keeping the eye at same level
c) Keeping the eye above the level of liquid
d) All are correct method of noting the level of liquid
3.
What is the incorrect method of noting down the level of a liquid in cylinder?
a) Both b and c
b) Keeping the eye above the level of liquid
c) Keeping the eye below the level of liquid
d) Keeping the eye at same level
4.
When the eye is above the liquid level, the meniscus appears ...............on the scale?
a) Below
b) Higher
c) Lower
d) Straight
5.
When the eye is below the liquid level, the meniscus appears ...............on the scale?
a) Above
b) Lower
c) Straight
d) Higher
6.
Which of the following instrument is used to measure the volume of a small irregular shaped solid that sinks in water?
a) Measuring cylinder
b) Screw gauge
c) Vernier callipers
d) Stopwatch
7.
How is initial volume of the water in measuring cylinder denoted?
a) Vn
b) Vf
c) Vi
d) Vr
8.
How is final volume of the water with the solid in a measuring cylinder denoted?
a) Vn
b) Vr
c) Vf
d) Vi
9.
With what the solid should be tied to dip in a measuring cylinder?
a) Aluminium wire
b) Copper wire
c) Lace
d) Thread
10.
What will be the volume of the solid in the measuring cylinder?
a) Vf + Vi
b) (Vf )( Vi)
c) Vf / Vi
d) Vf - Vi
11.
What should be displayed in the laboratory to handle any mishap or accident?
a) Charts
b) both b and c
c) Slides
d) Posters
12.
What are the safety rules of the laboratory?
a) Do not eat, drink, play or run in the laboratory
b) All are safety rules
c) Handle equipments and materials with care
d) Don’t carry out experiment without permission of teacher
13.
What are the safety rules of the laboratory?
a) All are safety rules
b) Do not temper with the electrical appliances
c) Read the instructions carefully to familiarize yourself with the possible hazards
d) Do not hesitate to consult your teacher in case of any doubt
14.
Do not hesitate to consult your .................in case of any doubt in laboratory?
a) Teacher
b) Lawyer
c) Doctor
d) Principal
15.
Report any accident or injuries immediately to your................?
a) Lawyer
b) Peon
c) Teacher
d) Doctor
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