The position, relative size and nature of the image formed by a concave lens for an object placed at infinity are respectively
at focus, diminished and virtual
at focus, diminished and real
between focus and optical centre, diminished and virtual
between focus and optical centre, magnified and real
For election to the Lok Sabha, a nomination paper can be filed by
Miscellaneous · Easy
In a month if the seventh day is three days earlier than Saturday,then the nineteenth day of the month will be a
Miscellaneous · Easy
Which among the following events happened earliest ?
Miscellaneous · Easy
An 80-litre solution of alcohol and water has 75% alcohol. How much water (in litres) must be added to bring down the concentration of alcohol to 60%?
Miscellaneous · Easy