307638
Consider the following statements I. The mass of a proton and a neutron are virtually same II. The charge of an electron and a proton are equal but has opposite sign III. The mass of the electrons is a significant fraction of the total mass of any atom
1 All are correct
2 I and II are correct but III is false
3 II and III are correct but I is false
4 I and III are correct but II is false
Explanation:
The mass of the electrons is not a significant fraction of the total mass of any atom.
CHXI02:STRUCTURE OF ATOM
307639
The lightest subatomic particle is
1-particle
2 positron
3 proton
4 neutron
Explanation:
-particle have two neutrons and two protons. So, it is heaviest subatomic particle among all whereas, proton and neutron are of same weight as . While electron is of only and position has same weight of electron with positive charge, thus both are lightest subatomic particles
CHXI02:STRUCTURE OF ATOM
307640
Which of the following pairs have identical values of e/m ?
1 A proton and a neutron
2 A proton and deuterium
3 Deuterium and an -particle
4 An electron and -rays
Explanation:
Deuterium and an -particle have identical values of e/m.
307638
Consider the following statements I. The mass of a proton and a neutron are virtually same II. The charge of an electron and a proton are equal but has opposite sign III. The mass of the electrons is a significant fraction of the total mass of any atom
1 All are correct
2 I and II are correct but III is false
3 II and III are correct but I is false
4 I and III are correct but II is false
Explanation:
The mass of the electrons is not a significant fraction of the total mass of any atom.
CHXI02:STRUCTURE OF ATOM
307639
The lightest subatomic particle is
1-particle
2 positron
3 proton
4 neutron
Explanation:
-particle have two neutrons and two protons. So, it is heaviest subatomic particle among all whereas, proton and neutron are of same weight as . While electron is of only and position has same weight of electron with positive charge, thus both are lightest subatomic particles
CHXI02:STRUCTURE OF ATOM
307640
Which of the following pairs have identical values of e/m ?
1 A proton and a neutron
2 A proton and deuterium
3 Deuterium and an -particle
4 An electron and -rays
Explanation:
Deuterium and an -particle have identical values of e/m.
307638
Consider the following statements I. The mass of a proton and a neutron are virtually same II. The charge of an electron and a proton are equal but has opposite sign III. The mass of the electrons is a significant fraction of the total mass of any atom
1 All are correct
2 I and II are correct but III is false
3 II and III are correct but I is false
4 I and III are correct but II is false
Explanation:
The mass of the electrons is not a significant fraction of the total mass of any atom.
CHXI02:STRUCTURE OF ATOM
307639
The lightest subatomic particle is
1-particle
2 positron
3 proton
4 neutron
Explanation:
-particle have two neutrons and two protons. So, it is heaviest subatomic particle among all whereas, proton and neutron are of same weight as . While electron is of only and position has same weight of electron with positive charge, thus both are lightest subatomic particles
CHXI02:STRUCTURE OF ATOM
307640
Which of the following pairs have identical values of e/m ?
1 A proton and a neutron
2 A proton and deuterium
3 Deuterium and an -particle
4 An electron and -rays
Explanation:
Deuterium and an -particle have identical values of e/m.
NEET Test Series from KOTA - 10 Papers In MS WORD
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CHXI02:STRUCTURE OF ATOM
307637
Which has highest specific charge?
1
2
3
4
Explanation:
For for , for for
CHXI02:STRUCTURE OF ATOM
307638
Consider the following statements I. The mass of a proton and a neutron are virtually same II. The charge of an electron and a proton are equal but has opposite sign III. The mass of the electrons is a significant fraction of the total mass of any atom
1 All are correct
2 I and II are correct but III is false
3 II and III are correct but I is false
4 I and III are correct but II is false
Explanation:
The mass of the electrons is not a significant fraction of the total mass of any atom.
CHXI02:STRUCTURE OF ATOM
307639
The lightest subatomic particle is
1-particle
2 positron
3 proton
4 neutron
Explanation:
-particle have two neutrons and two protons. So, it is heaviest subatomic particle among all whereas, proton and neutron are of same weight as . While electron is of only and position has same weight of electron with positive charge, thus both are lightest subatomic particles
CHXI02:STRUCTURE OF ATOM
307640
Which of the following pairs have identical values of e/m ?
1 A proton and a neutron
2 A proton and deuterium
3 Deuterium and an -particle
4 An electron and -rays
Explanation:
Deuterium and an -particle have identical values of e/m.