One astronomical unit is the average distance between:1). Earth and the sun2). Earth and the Moon3). Jupiter and the Sun4). Pluto and the Sun
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1. Two block of ice when pressed together join to form one block because
2. Boyle's law relates to
3. Question 14.2:Which of the following examples represent (nearly) simple harmonic motion and which represent periodic but not simple harmonic motion?(a) the rotation of earth about its axis.(b) motion of an oscillating mercury column in a U-tube.(c) motion of a ball bearing inside a smooth curved...
4. Question 14.3:Carbon, silicon and germanium have four valence electrons each. These are characterised by valence and conduction bands separated by energy band gap respectively equal to (Eg)C, (Eg)Si and (Eg)Ge. Which of the following statements is true?(a) (Eg)Si
5. Which of the following is an example of continous emission spectrum?
6. If the force applied on the object is in the direction opposite to the direction of motion, the speed of the object __________.
7. The unit of electrical power is
8. An object at rest will remain at rest and an object in motion will remain in motion until and unless it is acted upon by an external force. This is Newton's
9. Question 6.7:State if each of the following statements is true or false. Give reasons for your answer.(a) In an elastic collision of two bodies, the momentum and energy of each body is conserved.(b) Total energy of a system is always conserved, no matter what internal and external forces on the body...
10. Green house effect is the heating up of the Earth's atmosphere which is due to
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