Physics
Which of the following have the same unit ?

Work and torque
Torque and moment of inertia
Work and power
Torque and angular momentum

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Physics
Holography is a technique of

Recording a permanent three dimensional photograph of a given single colour or a multicolour
Recording a permanent, sharp two diimensional black and white or multicolour photograph
Recording a permanent three dimensional multicolour photograph
Recording a permanent three dimensional black and white photograph

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