Indian army has published the notification for SSC Tech 56 men and SSC Tech 27 women for the course commencing at OTA Chennai from April 2021
Steppe (temperature continental) climate is not experienced in which one of the following places?
Pretoria
Saskatchewan
Perth
Buenos Aires
Which one of the following is not a process of Chemical Weathering?
Solution
Carbonation
Oxidation
Exfoliation
Which one of the following statements is correct for a plane mirror?
Its focal length is zero
The size of the image of an object placed in front of the mirror is slightly less than that of the object.
The image is virtual, erect and laterally inverted
Its focal length is 200 cm
An object is placed in front of a convex mirror. Which one of the following statements is correct?
It will never form an inverted image
The image moved towards the focus when the object moves towards the mirror.
Depending on the position of the object with respect to the mirror, the image can be inverted and real
The size of the image becomes larger than that of the object when the object is placed at a distance equal to half the focal length
A circular coil of radius R having N number of turns carries a steady current I. The magnetic induction at the centre of the coil is 0.1 tesla. If the number of turns is doubled and the radius is halved, which one of the following will be the correct value for the magnetic induction at the centre of the coil?
0.05 tesla
0.2 tesla
0.4 tesla
0.8 tesla
