National Science Olympiad Forum By SOF Olympiad Trainer - Page 520
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Siddhant Chaturvedi from JPHS, JAIPUR
Subject :NSO    Class : Class 1

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Saptak from Navy children school, Visakhapatnam
Subject :NSO    Class : Class 7

Ans 1:

Shreya from DAV public school jamalpur, JAMALPUR
Class : Class 7
D

Ans 2:

Siddharth from Navy Children School, KOCHI
Class : Class 4
ans is supposed to be c

Ans 3:

ARUNAV from DPS VINDHYANAGAR, VINDHYANAGAR
Class : Class 10
HEy i do not know why but in the solution it is written that window cleaner is a aid.. This is wrong , as Window cleaner is ammonium hydroxide , which is a base.

Ans 4:

Nimisha Tambe from Narayana vidyalayam, Nagpur
Class : Class 8
D

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Akshat Pathak from DPS Sector 30, Noida
Subject :NSO    Class : Class 3

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Ayushi from DPS Noida, Noida
Subject :NSO    Class : Class 4

Ans 1:

Nishtha Shukla from Sri Chaitanya Techno School, Gurgaon
Class : Class 8
C

Ans 2:

Vaibhav from The Millennium School , Dubai
Class : Class 8
The answer is (D).

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Dibyanshu Lahiri from Mont Fort Sr Sec School, Roorkee
Subject :NSO    Class : Class 8

Ans 1:

Jagadarsh Meda from Sri Vidyanjali, Hyderabad
Class : Class 8
The Answer is Nova. C

Ans 2:

Vartika Agarwal from Phoenix world school, Pune
Class : Class 9
No its d super nova

Ans 3:

Nishchay Gupta from Cambridge Court World School, Jaipur
Class : Class 6
The answer must be D . Super NovaBecause in nova no explosion happens while in Supernova it is the end of the life of the star and explosion occurs.

Ans 4:

ANVITA from KENDRIYA VIDYALAYA NO.1, CALICUT, KOZHIKODE
Class : Class 9
The answer is C. Nova

Ans 5:

The Address from Somaiya, Mumbai
Class : Class 6

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Dibyanshu Lahiri from Mont Fort Sr Sec School, Roorkee
Subject :NSO    Class : Class 8

Ans 1:

Sriyansh from Surabhi , Hosapete
Class : Class 9
The answer is B. The water conducts the heat from the iron ball and thus WATER'S temperature will increase while the temperature of the ball will constantly keep decreasing as it is loosing heat. After sometime both the water and the ball come to equilibrium state i.e they have the same temperature. From then on the temperature will remain constant. AS graph in option B indicates an increase in temperature for a while and then constant temp it is correct

Ans 2:

Sriyansh from Surabhi , Hosapete
Class : Class 9
The answer is B. The water conducts the heat from the iron ball and thus water's temperature will increase while the temperature of the ball will constantly keep decreasing as it is loosing heat. After sometime both the water and the ball come to equilibrium state i.e they have the same temperature. From then on the temperature will remain constant. AS graph in option B indicates an increase in temperature for a while and then constant temp It is correct

Ans 3:

Shubhangam Raj from Don Bosco Academy, Patna
Class : Class 8
B

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Dibyanshu Lahiri from Mont Fort Sr Sec School, Roorkee
Subject :NSO    Class : Class 8

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Garv Makkar from Modern Delhi Public School, Faridabad
Subject :NSO    Class : Class 9

Ans 1:

from ,
Class : Class 10
Yes it is definitely D

Ans 2:

sujal saronit from Delhi Public School , rourkela
Class : Class 9
Answer is Dconfirm !!

Ans 3:

Yash Bindal from Global Indian International School, Singapore
Class : Class 9
Answer is D

Ans 4:

Raghav Tyagi from birla vidya niketan, new delhi
Class : Class 10
yes you're right answer is d

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Abhinav Kulkarni from National Centre For Excellence, Bengaluru
Subject :NSO    Class : Class 4

Ans 1:

Alpesh Mondal from PM SHRI KENDRIYA VIDYALAYA CHITTARANJAN, chittaranjan
Class : Class 7

Ans 2:

Alpesh Mondal from PM SHRI KENDRIYA VIDYALAYA CHITTARANJAN, chittaranjan
Class : Class 7
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Ans 3:

Nishtha Shukla from Sri Chaitanya Techno School, Gurgaon
Class : Class 8
A

Ans 4:

Aditya Rai from Kv No.1 Icchanath, Surat
Class : Class 7

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adu from CHSV, Chennai
Subject :NSO    Class : Class 6

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