Which of the following is a wrong statement ?
A) Mass of proton was 1836 times greater than that of the electron
B) Proton is represented as P-
C) Proton repels neutrons
D) Proton is a subatomic particle in an atom
Correct Answer - (i) 0.28 (ii) 0.4 (iii) 0.32
2 Answers 1 viewsi. True ii. False, In Rutherford’s experiment of scattering of α-particles by thin gold foil, very few α-particles bounced back. iii. False, Cathode rays are a stream of very small, negatively charged particles.
2 Answers 1 viewsCorrect answer is (b) We know that \(\tau\) = r × F ∵ \(\tau\) \(= \frac{dL}{dt},\) \(F = \frac{dP}{dt}\) \(\left(\frac{dL}{dt}\right) = r \times \left(\frac{dP}{dt}\right)\) \(\left(\frac{dL}{dt}\right) - r \times \left(\frac{dP}{dt}\right) = 0\)
2 Answers 1 viewsGiven that \(\vec a, \vec b\) and \(\vec c\)are unit vectors. i.e., |\(\vec a\)| = |\(\vec b\)| = |\(\vec c\)| = 1 And \(\vec a\) + \(\vec b\) + \(\vec c\) = \(\vec 0\) Then \((\vec a+\vec b+\vec c).(\vec a+\vec b+\vec c)=\vec 0.\vec...
2 Answers 1 viewsCorrect option is B) repels
2 Answers 1 viewsCorrect option is B) 1836
2 Answers 1 viewsCorrect option is D) 80
2 Answers 1 viewsCorrect Answer - 25
2 Answers 1 viewsCorrect Answer - D `lambda = (h)/(mv)`
2 Answers 1 views