Practice free Nuclei (Physics) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Which partical are emitted during the $ \beta $ decay from the nucleus ?
In beta decay, a neutron in the nucleus is converted into a proton, an electron, and an antineutrino (or a proton is converted into a neutron, a positron, and a neutrino in beta-plus decay). Therefore, the particles emitted are an electron and a neutrino (or antineutrino).
How much times is the strong nuclear force stronger then weak nuclear force ?
$ { Strong nuclear force \over Electro magnatic force } = { 1 \over 10 ^ {-2 } } = 10 ^ 2 $
How much times is the strong nuclear force stronger then electro magnatic force ?
$ { Strong nuclear force \over Weak nuclear force} = { 1 \over 10 ^ {-13} } = 10 ^ {13} $
Range of weak nuclear force is ...............
Strong nuclear force close not exist on ...............
The strong nuclear force does not act on electrons. This force acts primarily between protons and neutrons within the atomic nucleus, binding them together. Electrons, which reside outside the nucleus, are not influenced by the strong nuclear force.
(ASSERTION & REASON) Assertion and Reason are given in following questions. Each question have four option. One of them is correct it. Assertion : The mass equivalent of 1000 kwh energy is 40 microgram. Reason : This follows from $ E = mc^2 $ where $ C = 3 \times 10 ^ 8 m/ s $
The assertion is that the mass equivalent of 1000 kWh energy is 40 micrograms, which is correct. The reason provided is that it follows from $E=mc^2$, where $c = 3 imes 10^8 ext{m/s}$. This is also correct. To find the mass, we use the equation $E=mc^2$. Given $E = 1000 ext{kWh} = 3.6 imes 10^9 ext{J}$, we get $m = rac{E}{c^2} = rac{3.6 imes 10^9}{(3 imes 10^8)^2} = 4 imes 10^{-8} ext{kg} = 40 ext{micrograms}$. Therefore, both assertion and reason are true, and the reason is the correct explanation of the assertion.
Out of gravitational, electromagnetic, Vander Waals, electrostatic and nuclear forces; which two are able to provide an attractive force between two neutrons
Gravitational force and nuclear force both are attractive in nature.
The wavelength of X-rays for lead isotopes respectively. Then
Since, atomic numbers are same,
Which of the following particles are constituents of the nucleus
(b) Protons and neutrons are the constituent particles of nucleus.
In a radioactive substance at t = 0, the number of atoms is 8, its half-life period is 3 yr. the number of atoms will remain after interval [UP CPMT 2010]
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