KCET · Physics · Atomic Physics
In Rutherford experiment, for head-on collision of a-particles with a gold nucleus, the impact
parameter is
- A of the order of \( 10^{-10} \mathrm{~m} \)
- B zero
- C of the order of \( 10^{-6} \mathrm{~m} \)
- D of the order of \( 10^{-14} \mathrm{~m} \)
Answer & Solution
Correct Answer
(B) zero
Step-by-step Solution
Detailed explanation
(B)
For head on collision the impact parameter is zero as it retraces the path.
For head on collision the impact parameter is zero as it retraces the path.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- The de-Broglie wavelength of a proton (charge \(=16 . \times 10^{-19} \mathrm{C}\), mass \(\left.=16 . \times 10^{-27} \mathrm{~kg}\right)\) accelerated through a potential difference of \(1 \mathrm{kV}\) isKCET 2007 Easy
- Which of the following expressions represents a simple harmonic progressive wave ?KCET 2012 Easy
- A train is moving slowly on a straight track with a constant speed of \(2 \mathrm{~ms}^{-1}\). A passenger in that train starts walking at a steady speed of \(2 \mathrm{~ms}^{-1}\) to the back of the train in the opposite direction of the motion of the train. So to an observer standing on the platform directly in front of that passenger, the velocity of the passenger appears to beKCET 2010 Hard
- Two bodies of masses \(8 \mathrm{~kg}\) are placed at the vertices \(A\) and \(B\) of an equilateral triangle \(A B C\). A third body of mass \(2 \mathrm{~kg}\) is placed at the centroid \(G\) of the triangle. If \(A G=B G=C G=1 \mathrm{~m}\), where should a
fourth body of mass \(4 \mathrm{~kg}\) be placed, so that the resultant force on the \(2 \mathrm{~kg}\) body is zero?KCET 2021 Easy - A series LCR circuit containing an AC source of 100 V has an inductor and a capacitor of reactances \(24 \Omega\) and \(16 \Omega\) respectively. If a resistance of \(6 \Omega\) is connected in series, then the potential difference across the series combination of inductor and capacitor only isKCET 2025 Medium
- A metallic rod of mass per unit length \(0.5 \mathrm{~kg} \mathrm{~m}^{-1}\) is lying horizontally on a smooth inclined plane which makes an angle of \(30^{\circ}\) with the horizontal. A magnetic field of strength \(0.25 \mathrm{~T}\) is acting on it in the vertical direction. When a current \(I\) is flowing through it, the rod is not allowed to slide down. The quantity of current required to keep the rod stationary isKCET 2022 Hard
More PYQs from KCET
- The approximate time duration in hours to electroplate 30 of calcium from molten calcium chloride using a current of \(5 \mathrm{~A}\) is [At. mass of \(\mathrm{Ca}=40\) ]KCET 2012 Medium
- In the reaction,
Formation of \(X, Y\) and \(Z\) are known byKCET 2023 Medium - BOD refers toKCET 2015 Medium
- If an electron in hydrogen atom jumps from an orbit of level \( n=3 \) to an orbit of level \( n=2 \). the emitted radiation has a frequency ( \( R= \) Rydberg constant, \( C= \) velocity of light)KCET 2015 Easy
- The value of \(\tan 67 \frac{1^{\circ}}{2}+\cot 67 \frac{1^{\circ}}{2}\) isKCET 2008 Medium
- Light of two different frequencies whose photons have energies \( 1 \mathrm{eV} \) and \( 2.5 \mathrm{eV} \) respectively,
successively illuminate a metallic surface whose work function is \( 0.5 \mathrm{eV} \). Ratio of maximum
speeds of emitted electrons will beKCET 2015 Easy