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Subject :Physics    Class : Class 7

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Subject :Physics    Class : Class 7

Which one of the following is true for the uniform speed?

A If speed of the object varies at different interval of time, the object has uniform speed.
B If speed of the object is constant at different intervals of time, the object has uniform speed.
C If a moving object suddenly comes to rest, the object has uniform speed.
D None of these.


Answer is showing option - BBut it should be ---- If speed of the object is equal at equal intervals of time , the object has uniform speed

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Subject :Physics    Class : Class 7

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Subject :Physics    Class : Class 7

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Subject :Physics    Class : Class 8

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Subject :Physics    Class : Class 8

Ans 1:

Class : >Class 8
b 2 seconds

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Subject :Physics    Class : Class 7

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Subject :Physics    Class : Class 7

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Subject :Physics    Class : Class 7

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Subject :Biology    Class : Class 8

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Subject :Biology    Class : Class 8

Assertion : Cooling stops microbes from growing.
Reason : A refrigerator keeps food at about 5°C.
In each of the following questions, a statement of Assertion is given and a corresponding statement of Reason is given just below it. Of the four statements, given below, mark one as the correct answer

A if both Assertion and Reason are true and Reason is the correct explanation of Assertion
B if both Assertion and Reason are true but Reason is not the correct explanation of Assertion
C if Assertion is true but Reason is false
D if both Assertion and Reason are false.


The correct answer is c but the reason is true

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Subject :Biology    Class : Class 8

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Subject :Biology    Class : Class 7

Ans 1:

Class : Class 7
206

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Subject :Maths    Class : Class 8

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Subject :Maths    Class : Class 8

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Subject :Maths    Class : Class 8

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Subject :Maths    Class : Class 8

Ans 1:

Class : Class 8
use bodmas 10/300=1/30 1/30*16=16/30=8/15 8/15+1=23/15

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Subject :Maths    Class : Class 7

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Subject :Maths    Class : Class 8

Ans 1:

Class : Class 8
5 2/3

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Subject :Maths    Class : Class 7

Ans 1:

Class : Class 8
12/33

Ans 2:

Class : Class 8
12/35

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