Formula for Couple acting on body (T)=F*d =Ma*d [F=M*a] =M*dv/t*d [a==(vf-vi)/t)] =M*(d/t/t)*d =Md^2/t^2 =ML^2T^-2
70) Stars which appear single to the naked eye but are double when seen through a telescope are
Answer is:
quasars
Explanation:
Related General Physics MCQ with Answers
Answer is:
the moon is between the sun and the earth
Explanation:
A solar eclipse occurs when the moon gets between Earth and the sun, and the moon casts a shadow over earth. A solar eclipse can only take place at the phase of new moon, when the moon passes directly between the sun and Earth and its shadows fall upon earth's surface.
Answer is:
the same number of protons but different number of neutrons
Explanation:
Isotope - same atomic number. Isobar - same mass number. Isotones - same number of neutrons.
Answer is:
3.6 x 103??J
Explanation:
1 watt- hour=1watt*1hour. = (1 j/sec) * (60*60 sec). = 3600j. =3.6*10^3 answer.
Answer is:
Scattering
Explanation:
When photons are scattered from an atom or molecule, most photons are elastically scattered (Rayleigh scattering) , such that the scattered photons have the same energy (frequency and wavelength) as the incident photons. A small fraction of the scattered photons (approximately 1 in 10 million) are scattered by an excitation, with the scattered photons having a frequency different from, and usually lower than, that of the incident photons. In a gas, Raman scattering can occur with a change in energy of a molecule due to a transition (see energy level). Chemists are primarily concerned with the transitional Raman effect.