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Subject :NSO    Class : Class 5

The diagram below shows a pump connected to a glass jar. The volume of the glass jar is 400 cm3 and it is filled with air. When the piston is pushed in completely, 50 cm3 of air is forced into the jar.
What is the final volume of air in the jar?

A 50 cm3
B 100 cm3
C 400 cm3
D 450 cm3

Class : Class 7
D

Class : Class 7
hello

Class : Class 5
D

Ans 4:

Class : Class 6
As air can be compressed and takes up the volume of container, its final volume in the jar will be 400 cm3.

Class : Class 6

Class : Class 4
ans is D

Ans 7:

Class : Class 5
DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD

Ans 8:

Class : Class 8
yes all please understand sorry if i am wrong it compress the air dear children it wont increase t decreases

Ans 9:

Class : Class 9
It will be D as it says that the jar contains 400 cm3 air and if a 50 cm3 syring filled with air is put into the jar it will become 450 cm3 400 50 = 450 cm3.

Class : Class 8

Ans 11:

Class : Class 4
Sof pls give us a GOOD explanation. Ans is d.

Ans 12:

Class : Class 4
d won't be the correct answer. the answer is c as air can be compressed.

Class : Class 7
d

Ans 14:

Class : Class 7
It was forced out of the tank so it went out and the thing is 50cmÃ‚Â³ so 400-50 50=400So the answer is 400cmÃ‚Â³

Class : Class 5

Ans 16:

Class : Class 8
you all are coreect

Ans 17:

Class : Class 5
plz dont be angry. The volume of the glass jar will not change. it will remain the same as it is not flexible. so if we compress air of 50cm3 the volume will decrease. But air occupies the available space. So, the correct answer is C.

Class : Class 5
Class : easy

Class : Class 6
C

Ans 20:

Class : Class 4
the question says what is the total volume of AIR in the jar, so as air can be compressed then it should obviously contain 450cm3 and I never heard of glass being flexible in other words the 50cm3 of air in the jar is not going to disappear or fly away so ans is D

Ans 21:

Class : Class 5
the correct answer is c because the volume of the jar is 400cm3

Class : Class 7
Ans is c

Ans 23:

Class : Class 7
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

Class : Class 1
Ans 16 is wrong

Class : Class 6

Class : Class 7

Class : Class 6

Ans 28:

Class : Class 9
air can be compressed .

Ans 29:

Class : Class 5
air can be compressed and it would be 450 cm3 answer is d

Ans 30:

Class : Class 9
Correct answer is C because air can be compressed. You don't need to add 400 and 50 because air can be compressed

Class : Class 5
D

Ans 32:

Class : Class 5
The volume of the JAR is 400 cm3 . If we insert air in the jar, the VOLUME OF THE JAR will remain the same as it is mentioned that the JAR IS COMPLETELY MADE OF GLASS, which is not flexible. Therefore, the answer is C .......

Ans 33:

Class : Class 5
I thought it would be C but after profound thinking I realised that the answer would be D