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kaithabjeetsingh@gmail.com from the shri ram school aravali, Gurgaon
Subject :NSO    Class : Class 7

The diagram shows four similar cans. Each can contains the same volume of water initially at 80°C. After five minutes, which can will contain the coolest water ?

A
B
C
D


Ans 1:

tashu gupta from Shanti Asiatic , jaipur
Class : Class 7
WHY NOT A

Ans 2:

Prathamesh Raje from DPS Electronic City, Bangalore
Class : Class 9
Why

Ans 3:

Prathamesh Raje from DPS Electronic City, Bangalore
Class : Class 9
I agree with you Anushree because the same thing is given in our science textbook also

Ans 4:

Rayhan Khan from Sister Nivedita School, Hyderabad
Class : Class 7
Why is it A?

Ans 5:

Ishaan Roy from Sri Chaitanya Techno School, Bengaluru
Class : Class 10

Ans 6:

Sradha Ratheesh from MGM central Public School, Trivandrum
Class : Class 8
It's A right?

Ans 7:

aritroray from Chirec International School, Hyderabad
Class : Class 8
It should be A

Ans 8:

GAUTHAM GOPINATH from BPDAV School, HYDERABAD
Class : Class 10
I think that the answer is A.Could someone explain why it is B?

Ans 9:

Archit Santosh Darakh from Podar International School , Aurangabad
Class : Class 8

Ans 10:

Sargah Surya from bgsnps, Bengaluru
Class : Class 4
how is the answerB. according to my science text book ( New science ahead class 7, pg.47), Black not only absorbs heat fast,but also radiates heat fast and cools down faster, accordingto that,answermust be A.

Ans 11:

Supratim Biswas from DPS RUBY PARK KOLKATA, kolkata
Class : Class 5

Ans 12:

Ishaan Roy from Sri Chaitanya Techno School, Bengaluru
Class : Class 10

Ans 13:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 10

Ans 14:

Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon
Class : Class 7
why not A

Ans 15: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is B.

Ans 16:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 10
How

Ans 17:

Rucha Patil from Podar International School, Aurangabad C.B.S.E, Aurangabad
Class : Class 8
Please Explain why is the answer (B)

Ans 18:

Anubhab Maity from Dps ruby park, Kolkata
Class : Class 7

Ans 19:

Prathamesh Raje from DPS Electronic City, Bangalore
Class : Class 9

Ans 20:

Sargah Surya from bgsnps, Bengaluru
Class : Class 4
Black radiates and absorbs heat faster. Confirmation is their in almost all science tb and google too. So answer must be A. WHY NOT A

Ans 21:

AISHA from K.V.No.-1,A.F.S.,SEC.-14, GURUGRAM
Class : Class 10
B IS GIVEN HERE IN NSO TEST.

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