J.J. Thomson’s Atomic Model, Millikan's oil drop experiment, Sommerfeld atomic model
« Previous Topic: Hydrogen Like Atom and its Line Spectra Next Topic: Miscellaneous Problems on Atoms »
Join With Us for More Updates
PHXII12:ATOMS

356530 Assertion :
If electron in an atom were stationary, then they would fall into the nucleus.
Reason :
Electrostatic force of attraction acts between negatively charged electrons and positive nucleus.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
AIIMS - 2018
PHXII12:ATOMS

356531 An oil drop carrying a charge \(q\) has a mass \(m\) \(kg\). It is falling freely in air with terminal speed \(v\). The electric field required to make the drop move upwards with the same speed is

1 \(\frac{{2\,mg}}{q}\)
2 \(\frac{{\,mg}}{q}\)
3 \(\frac{{2\,mgv}}{q}\)
4 \(\frac{{\,mg\;v}}{{{q^2}}}\)
PHXII12:ATOMS

356532 An oil drop with charge \(q\) is held stationary between two plates with an external potential difference of 400\(V\). If the size of the drop is doubled without any change of charge, the potential difference required to keep the drop stationary will be

1 \(1600\,V\)
2 \(400\,V\)
3 \(4000\,V\)
4 \(3200\,V\)
PHXII12:ATOMS

356533 Three particles having charges in the ratio of \(2: 3: 5\), produce the effect at the same point on the photographic film in Thomson experiment. Their masses are in the ratio of

1 \(2: 3: 5\)
2 \(5: 3: 2\)
3 \(15: 10: 6\)
4 \(3: 5: 2\)
For More Updates join with Us
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXII12:ATOMS

356530 Assertion :
If electron in an atom were stationary, then they would fall into the nucleus.
Reason :
Electrostatic force of attraction acts between negatively charged electrons and positive nucleus.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
AIIMS - 2018
PHXII12:ATOMS

356531 An oil drop carrying a charge \(q\) has a mass \(m\) \(kg\). It is falling freely in air with terminal speed \(v\). The electric field required to make the drop move upwards with the same speed is

1 \(\frac{{2\,mg}}{q}\)
2 \(\frac{{\,mg}}{q}\)
3 \(\frac{{2\,mgv}}{q}\)
4 \(\frac{{\,mg\;v}}{{{q^2}}}\)
PHXII12:ATOMS

356532 An oil drop with charge \(q\) is held stationary between two plates with an external potential difference of 400\(V\). If the size of the drop is doubled without any change of charge, the potential difference required to keep the drop stationary will be

1 \(1600\,V\)
2 \(400\,V\)
3 \(4000\,V\)
4 \(3200\,V\)
PHXII12:ATOMS

356533 Three particles having charges in the ratio of \(2: 3: 5\), produce the effect at the same point on the photographic film in Thomson experiment. Their masses are in the ratio of

1 \(2: 3: 5\)
2 \(5: 3: 2\)
3 \(15: 10: 6\)
4 \(3: 5: 2\)
NEET DIGITAL LIBRARY
PHXII12:ATOMS

356530 Assertion :
If electron in an atom were stationary, then they would fall into the nucleus.
Reason :
Electrostatic force of attraction acts between negatively charged electrons and positive nucleus.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
AIIMS - 2018
PHXII12:ATOMS

356531 An oil drop carrying a charge \(q\) has a mass \(m\) \(kg\). It is falling freely in air with terminal speed \(v\). The electric field required to make the drop move upwards with the same speed is

1 \(\frac{{2\,mg}}{q}\)
2 \(\frac{{\,mg}}{q}\)
3 \(\frac{{2\,mgv}}{q}\)
4 \(\frac{{\,mg\;v}}{{{q^2}}}\)
PHXII12:ATOMS

356532 An oil drop with charge \(q\) is held stationary between two plates with an external potential difference of 400\(V\). If the size of the drop is doubled without any change of charge, the potential difference required to keep the drop stationary will be

1 \(1600\,V\)
2 \(400\,V\)
3 \(4000\,V\)
4 \(3200\,V\)
PHXII12:ATOMS

356533 Three particles having charges in the ratio of \(2: 3: 5\), produce the effect at the same point on the photographic film in Thomson experiment. Their masses are in the ratio of

1 \(2: 3: 5\)
2 \(5: 3: 2\)
3 \(15: 10: 6\)
4 \(3: 5: 2\)
Join With Us for More Updates
PHXII12:ATOMS

356530 Assertion :
If electron in an atom were stationary, then they would fall into the nucleus.
Reason :
Electrostatic force of attraction acts between negatively charged electrons and positive nucleus.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
AIIMS - 2018
PHXII12:ATOMS

356531 An oil drop carrying a charge \(q\) has a mass \(m\) \(kg\). It is falling freely in air with terminal speed \(v\). The electric field required to make the drop move upwards with the same speed is

1 \(\frac{{2\,mg}}{q}\)
2 \(\frac{{\,mg}}{q}\)
3 \(\frac{{2\,mgv}}{q}\)
4 \(\frac{{\,mg\;v}}{{{q^2}}}\)
PHXII12:ATOMS

356532 An oil drop with charge \(q\) is held stationary between two plates with an external potential difference of 400\(V\). If the size of the drop is doubled without any change of charge, the potential difference required to keep the drop stationary will be

1 \(1600\,V\)
2 \(400\,V\)
3 \(4000\,V\)
4 \(3200\,V\)
PHXII12:ATOMS

356533 Three particles having charges in the ratio of \(2: 3: 5\), produce the effect at the same point on the photographic film in Thomson experiment. Their masses are in the ratio of

1 \(2: 3: 5\)
2 \(5: 3: 2\)
3 \(15: 10: 6\)
4 \(3: 5: 2\)
For More Updates join with Us