Physics

Option: C
Explanation :If you were traveling at the speed of light you could fly around the world 7 and a half times in one second.
Einstein’s theory of special relativity sets of the speed of light, 186,000 miles per second or 300,000 km/s or 670,616,629 miles per hour pr 299,792,458 metres per second. But some scientists are exploring the possibility that this cosmic speed limit changes.
The speed of light in a vacuum is 186,282 miles per second (299,792 kilometers per second), and in theory nothing can travel faster than light. If you could travel at the speed of light, you could go around the Earth 7.5 times in one second.

Click Here..

Please comment below with correct answer and it’s detail explanation.

Option: A
Explanation :Einstein’s theory of special relativity sets of the speed of light, 186,000 miles per second/300,000 km/s (299,792,458 metres per second). But some scientists are exploring the possibility that this cosmic speed limit changes.
The speed of light in a vacuum is 186,282 miles per second (299,792 kilometers per second), and in theory nothing can travel faster than light and in theory nothing can travel faster than light. If you could travel at the speed of light, you could go around the Earth 7.5 times in one second.

Click Here..

Please comment below with correct answer and it’s detail explanation.

Option: A
Explanation :Superconductivity is the ability of certain materials to conduct electric current with practically zero resistance. This capacity produces interesting and potentially useful effects. For a material to behave as a superconductor, low temperatures are required.
Superconductivity was first observed in 1911 by H. K. Onnes, a Dutch physicist. His experiment was conducted with elemental mercury at 4 degrees kelvin (approximately -452 degrees Fahrenheit), the temperature of liquid helium.

Click Here..

Please comment below with correct answer and it’s detail explanation.

Option: A
Explanation :No explanation is available for this question. To view user comments or add your comments please Click Here..

Click Here..

Please comment below with correct answer and it’s detail explanation.

Option: B
Explanation :The telescope is an instrument that collects and analyzes the radiation emitted by distant sources. The most common type is the optical telescope, a collection of lenses and/or mirrors that is used to allow the viewer to see distant objects more clearly by magnifying them or to increase the effective brightness of a faint object. In a broader sense, telescopes can operate at most frequencies of the electromagnetic spectrum , from radio waves to gamma rays.

Click Here..

Please comment below with correct answer and it’s detail explanation.