National Science Olympiad Forum By SOF Olympiad Trainer - Page 440
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Adya Shree from Shishya BEML Public School, Bangalore
Subject :NSO    Class : Class 3

Ans 1:

from PG, Hyd
Class : Class 4
B

Ans 2:

Mohi from Vibgyor, Bangalore
Class : Class 6
B. Water

Ans 3:

Adya Shree from Shishya BEML Public School, Bangalore
Class : Class 3

Ans 4:

ANSHUL GAJJAR from PODAR INTERNATIONAL SCHOOL, AHMEDABAD
Class : Class 3
B

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Mehar from NCS, Vasco
Subject :NSO    Class : Class 5

Ans 1:

Aditya from Sishugriha, Bangalore
Class : Class 4

Ans 2:

Vaibhav Elisetti from sri chaitanya techno school Nallagandla, Hyderabad
Class : Class 7
ans is d

Ans 3:

from , rajahmundry
Class : Class 2
Ans is D . THERE IS NO DENGUE, BUT,THERE IS MALARIA IS THERE WHERE FEMALE MOSQUITO BITES. OPTION - A - ROUGHAGE OPTION - B - MALARIA OPTION -C - ANAEMIA OPTION - D - NOTNING IS THERE SO, ANSWER IS D WHICH IS NOT HIDDEN IN THE GIVEN QUESTION.

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Arpan A Shettihalli from APS Public School, BENGALURU
Subject :NSO    Class : Class 7

Ans 1:

Ankush Ghosh from DPS, Doha
Class : Class 10
Please specify if mirror and object each have individual speed "V" or V is there relative velocity? In the solution it is mentioned as "Relative Velocity" which is not clear in the question

Ans 2:

Soham Singh from JMPS, Jammu
Class : Class 7
Even though both the object and the mirror are moving away, it talks about the speed of the image with respect to the mirror. The speed wouldn't be double in this case and hence the correct option should be B) and not A)

Ans 3:

Mridul Jain from Shishukunj International School Indore, Indore
Class : Class 9

Ans 4:

Ankush Ghosh from DPS, Doha
Class : Class 10

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Kaustav Bhowal from Julien Day School, Kolkata
Subject :NSO    Class : Class 6

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Shivam Yadav from Wisdom world school , Kurukshetra
Subject :NSO    Class : Class 7

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Akhil Budithi from Kennedy high the global school , Hyderabad
Subject :NSO    Class : Class 8

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Akhil Budithi from Kennedy high the global school , Hyderabad
Subject :NSO    Class : Class 8

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Sparsh Bagal from Bharati Vidyapeeth School, Pune
Subject :NSO    Class : Class 4

Ans 1:

Yatindra G from SBOA, Chennai
Class : Class 4

Ans 2:

Kavin from ISG , Muscat, Muscat
Class : Class 5
clear your doubts and please report

Ans 3:

Yatindra G from SBOA, Chennai
Class : Class 4
What doubts, Kavin??

Ans 4:

aayushi anand from AIR FORCE SCHOOL HASIMARA, HASIMARA
Class : Class 4
C

Ans 5:

Shruthi from VIBGYOR, Mumbai
Class : Class 6

Ans 6:

Shreshta from Presidium, Ghaziabad
Class : Class 3
D

Ans 7:

Ray Bansal from DPSG, Ghaziabad
Class : Class 5

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ASHISH K DIXIT from JASPAL KAUR PUBLIC SCHOOL, NEW DELHI
Subject :NSO    Class : Class 6

Ans 1:

Nirbhay from Podar International School, mysore
Class : Class 6

Ans 2:

Aarav Malviya from INDIAN SCHOOL SALALAH, SALALAH
Class : Class 7

Ans 3:

Aarav Malviya from INDIAN SCHOOL SALALAH, SALALAH
Class : Class 7
Let’s calculate -10 to the 5th power seconds = 105 = 100,000 secondsNow, 60 seconds = 1 minuteOr, 60 x 60 seconds = 3600 seconds = 1 hourOr, 1 second = 1/3600 hourOr, 100,000 seconds = (1/3600) x 100,000 hours = 1000/36 hours = 27.78 hoursNow, let’s see this amount of time is closer to which of the following options:A. Of a full length movie ----- The standard time of a full length movie is 2 hours. So, this option is Incorrect.B. For the Earth to rotate once ----- Earth rotates once in about 24 hours with respect to the Sun. 24 hours is the nearest to 27.78 hours. So, this option is Correct.C. Of an average human lifetime ----- Average human life-time is about 79 years. So, this option is Incorrect.D. Since humans first appeared on the Earth ----- The earliest fossils of anatomically modern humans are from the Middle Paleolithic Age, about 200,000 years ago. So, this option is Incorrect.That means the right answer is Option B.

Ans 4:

shrawan azad from DPS VASANTKUNJ NEW DELHI, New Delhi
Class : Class 4

Ans 5:

Shriya Sreekrishna from BLUEBELLS SCHOOL INTERNATIONAL, New Delhi
Class : Class 7

Ans 6:

Vibhati Ranjan from The Presidential School, Visakhapatnam
Class : Class 6

Ans 7:

Aarav Malviya from INDIAN SCHOOL SALALAH, SALALAH
Class : Class 7

Ans 8:

Nirbhay from Podar International School, mysore
Class : Class 6

Ans 9:

Chinmay from SBPPS, Pune
Class : Class 7

Ans 10:

Manya Paliwal from NCS Kochi, kochi
Class : Class 7
let's calculate 10 to the power 5. its 10000 seconds . which

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ASHISH K DIXIT from JASPAL KAUR PUBLIC SCHOOL, NEW DELHI
Subject :NSO    Class : Class 6

Ans 1:

Hitesh from Chinmayavidyalaya, Bargarh
Class : Class 6

Ans 2:

Shweta Garg from Vibgyor high, Vadodara
Class : Class 8

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