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Renu ROY from ,
Subject :NSO    Class : Class 8

Read the given statements and mark the correct option.

Statement 1 : Copper sulphate solution is a good conductor of electricity.
Statement 2 : Conduction of electricity takes place in liquids due to flow of ions.

ABoth statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
BBoth statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
CStatement 1 is true but statement 2 is false.
DStatement 1 is false but statement 2 is true.

Ans 1: (Master Answer)

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

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HARSH NAIK from KLE ENGLISH MEDIUM SCHOOL, SHOLAPUR
Subject :NSO    Class : Class 6

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asher.pedamuthevi from CAL PUBLIC SCHOOL, Hyderabad
Subject :NSO    Class : Class 5

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anindeeta78@gmail.com from nk bagrodia global school, New Delhi
Subject :NSO    Class : Class 5

Which of these is true about the speed of sound through solids, liquids and gases?
           Solid                    Liquid            Gas
ASlow                     Faster          Fastest
BAverage speed    Fastest          Slowest
CSlowest                Fastest         Average speed
DFastest                 Slower         Slowest


explanation

Ans 1:

Ali Hussain from Delhi Private School Dubai, Dubai
Class : Class 6
how atmosphere(the medium of sound we normally use) tell sound faster or in waterP.S it is showing ans d

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A Andriya from Lalaji Memorial Omega International School, Chennai
Subject :NSO    Class : Class 4

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A Andriya from Lalaji Memorial Omega International School, Chennai
Subject :NSO    Class : Class 4

Read the given statements and select the correct option.
Statement 1 : Snake and crocodile are cold blooded animals.
Statement 2 : Snake and crocodile breathe through moist skin.

A Both statements 1 and 2 are correct and statement 2 is the correct explanation of statement 1.
B Both statements 1 and 2 are correct but statement 2 is not the correct explanation of statement 1.
C Statement 1 is correct but statement 2 is incorrect.
D Both statements 1 and 2 are incorrect.

Ans 1:

RHETAMA DAS from Usha Martin school,Malda, MALDA
Class : Class 3
Through dry skin

Ans 2:

Parmanyu from Learning paths school, Mohali
Class : Class 5
How do snakes and crocodiles breathe then?

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A Andriya from Lalaji Memorial Omega International School, Chennai
Subject :NSO    Class : Class 4

Ans 1:

Nandiniashok from St. pauls English school , Bengaluru
Class : Class 4
Pls send the correct answer and explanation.

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Tushar from DPS, Bengaluru
Subject :NSO    Class : Class 6

Ans 1:

Kushal from Chirec, Hyderabad
Class : Class 7

Ans 2:

Tushar from DPS, Bengaluru
Class : Class 8
Correct option is D.

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anindeeta78@gmail.com from nk bagrodia global school, New Delhi
Subject :NSO    Class : Class 5

Read the given statements and select the correct option.
Statement 1: Digestion and blood circulation are some voluntary actions of our body.
Statement 2: Voluntary actions are the actions which are not under human control.

A Both statements 1 and 2 are correct and statement 2 is the correct explanation of statement 1.
B Both statements 1 and 2 are correct but statement 2 is not the correct explanation of statement 1.
C Statement 1 is true but statement 2 is false.
D Both statements 1 and 2 are false.


need a clear expalanation

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DRAVIT GUPTA from Mother's Global School, New Delhi
Subject :NSO    Class : Class 9

Ans 1:

Adwyth G Nair from Chinmaya Vidyalaya Tripunithura, Kochi
Class : Class 10
i think the above explanation is good and would be more accurate if shft of centre of mass is calculated

Ans 2:

pratham from Indian School Ghubra, Muscat, Muscat
Class : Class 7
I agree with Gh from Mahatma, Ghaziabad, options are not correctly provided in the question.

Ans 3:

divanshi from sacred heart convent school, barnala
Class : Class 9
this need more details as the question is not clear

Ans 4:

Gh from Mahatma, Ghaziabad
Class : Class 10
I think it should be 7GM^2/256R^2 G is constant. M will become 7M/8 due to mass removal .M2 will be M/8 . Distance is 2 R . So the product is equivalent to the above. But I don't know how it is not in answers

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