What will be the value of 1 gf:

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105 dyne

981 dyne

9.8 N

answer is B.

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Detailed Solution

Concept: A gram- force, is a gravitational unit of force. That is, one gram force is defined as the force exerted by one gram of mass in the standard value of a gravitational field. The gram-force is equal to the product of mass of one gram by the standard acceleration due to gravity. Thus gram force is equal to 0.0098 Newton which is also equal to 980.665 dyne.
A gram- force is a gravitational unit of force. That is, one gram force is defined as the force exerted by one gram of mass in the standard value of a gravitational field. Thus one gram force has a value equal to 9.8mN. The gram-force is equal to the product of mass of one gram by the standard acceleration due to gravity. Thus gram force is equal to 0.0098 Newton which is also equal to 980.665 dyne. Dyne is also a unit of force in centimetre gram second (CGS) units. One dyne is approximately equal to 0.00001 Newton.
Even though force has various units, the S.I unit of force is Newton.
Hence, option 2 is correct.

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