Questions

The slot covers on a computer reduce the dust build up inside the computer. So the slot covers should be present in proper place.The missing covers can disrupt the airflow design of the case and cause overheating problems.

A periscope is an optical instrument that uses a system of prisms, lenses, or mirrors to reflect images through a tube.

Light from a distant object strikes the top mirror and is then reflected at an angle of 90 degrees down the periscope tube. At the bottom of the periscope, the light strikes another mirror and is then reflected into the viewer’s eye.

Hence, A periscope works by the principle of Total internal reflection.

A compiler is not a software.

Adobe, Microsoft office and Drivers are all software on a computer.

It is a scheme across the river Rihand near Pipri in Mirzapur district of Uttar Pradesh

By default, a real number is treated as a float variable.