Two uncharged objects a and b are rubbed against each other. When object b is placed near a negatively charged object c, the two objects repel each other. Which of these statements is true about object a:
Remains uncharged
Becomes positively charged
Becomes negatively charged
Unpredictable
Totally reflecting prism is used in:
Periscope
Binoculars
Periscope and binocular
Telescope
According to coulomb’s law, what happens to the attraction of two oppositely charged objects as their distance of separation increases:
Increases
Decreases
Remains unchanged
Cannot be determined
Eight bits combine to form:
A byte
Megabyte
Kilobyte
Gigabyte
