Which of the following is / are correct statements with respect to the image formed in a plane mirror?
Image is always virtual
The distance of image from the mirror is same as the distance between object and mirror
Image is laterally inverted
Select the correct option from the codes given below
The force of attraction or repulsion between two point charges at rest is directly proportional to the product of magnitude of the charges and inversely proportional to the square of the distance between them. Which of the following law implies the statement presented here?
A potentiometer wire is 100 cm long and a constant potential difference is maintained across it. Two cells are connected in series first to support one another and then in opposite direction. The balance points are obtained at 50 cm and 10 cm from the positive end of the wire in the two cases. The ratio of the emf’s is :
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