National Science Olympiad Forum By SOF Olympiad Trainer - Page 390
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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

Ans 2:

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 3:

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

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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

Ans 1:

Ved Sinha from DL DAV MODEL SCHOOL, New Delhi
Class : Class 8

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

Ans 1:

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

Ans 2:

Shreshta from Presidium, Ghaziabad
Class : Class 3
D

Ans 3:

Ray Bansal from DPSG, Ghaziabad
Class : Class 5

Ans 4:

Shruthi from VIBGYOR, Mumbai
Class : Class 6

Ans 5:

Yatindra G from SBOA, Chennai
Class : Class 4

Ans 6:

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

Ans 7:

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

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

Ans 1:

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

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Chinmay from SBPPS, Pune
Class : Class 7

Ans 3:

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

Ans 4:

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 5:

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

Ans 6:

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

Ans 7:

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

Ans 8:

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

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Shweta Garg from Vibgyor high, Vadodara
Class : Class 8

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Admin fly from Ddssxxx, Ax
Subject :NSO    Class : Class 6

Ans 1:

Amrik Pal from Kendriya Vidyalaya DRDO, Bangalore
Class : Class 6
d

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