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grishma gautam asked a question

1.ans:  No the tension in the string of a simple pendulum is not constant throughout the motion                                     

v is velocity of the bob and theta is the angle made by the string with vertical axis.
as v and  both are variable T is also variable.
T is maximum at mean position as at mean position v is max and the angle is minimum.


2.ans: If the amplitude of the simple...

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Puspak Sah asked a question

The difference between Gram atomic  mass and Gram atomic molecular are given below:

Gram atomic mass

Gram molecular mass

1.The mass of 6.023 x 1023 atoms of one mole atom of any element when expressed in terms of grams is called gram atomic mass.

1.The mass of 6.023 x 1023 molecules or 1 mole molecule of any substance expressed in grams is called gram molecular mass.

2.It is used to calculate the mass of an atom.2. It is used to calculate the mass of a molecule/molecular compound.
3. It is...
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Diwas Pandit asked a question

A negative of a vector represents the direction opposite to the reference direction. It means that the magnitude of two vectors are same but they are opposite in direction.

For example, if A and B are two vectors that have equal magnitude but opposite in direction, then vector A is negative of vector B.

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NANDANI KUMARI asked a question
II)Cr2+ is reducing agent as its configuration changes from d4 to d3, when it is oxidized to Cr3+ .The d3 configuration have a half-filled t2g level which is very stable. On the other hand, the reduction of Mn3+ to Mn2+ results in the half-filled (d5) configuration which has extra stability hence Mn3+ acts as oxidizing agent.
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