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General
Easy
Question
In the given reaction 
radioactive radiation are emitted in the sequence
The correct answer is:
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physics-
A hypothetical radioactive nucleus decays according to the following series
If the mass number and atomic number of A are respectively 180 and72. Then to atomic number and mass number of A will respectively be
A hypothetical radioactive nucleus decays according to the following series If the mass number and atomic number of A are respectively 180 and72. Then to atomic number and mass number of A will respectively be
physics-General
physics-
In the given nuclear reaction represents 
In the given nuclear reaction represents
physics-General
physics
The energy dissipated in a damped oscillation,
The energy dissipated in a damped oscillation,
physicsGeneral
physics
If the time period of undamped oscillation is T and that of damped oscillatin is , then T,what is the relation between I&.
If the time period of undamped oscillation is T and that of damped oscillatin is , then T,what is the relation between I&.
physicsGeneral
physics-
Four lowest energy levels of 
-atom are shown in the figure. The number of possible emission lines would be
Four lowest energy levels of -atom are shown in the figure. The number of possible emission lines would be
physics-General
physics
Complete the following sentence In a damped oscillation of a pendulum ..
Complete the following sentence In a damped oscillation of a pendulum ..
physicsGeneral
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When a sample of solid lithium is placed in a flask of hydrogen gas then following reaction happened 
This statement is
The given reaction is a nuclear reaction, which can take place only if a proton (a hydrogen nucleus) comes into contact with a lithium nucleus. If the hydrogen is in the atomic from, the interaction between it’s electron cloud and the electron cloud of a lithium atom keeps the two nuclei from getting close to each other. Even if isolated protons are used, they must be fired at the 
atom with enough kinetic energy to overcome the electric repulsion between the proton and atom
atom with enough kinetic energy to overcome the electric repulsion between the proton and atomWhen a sample of solid lithium is placed in a flask of hydrogen gas then following reaction happened This statement is
physics-General
The given reaction is a nuclear reaction, which can take place only if a proton (a hydrogen nucleus) comes into contact with a lithium nucleus. If the hydrogen is in the atomic from, the interaction between it’s electron cloud and the electron cloud of a lithium atom keeps the two nuclei from getting close to each other. Even if isolated protons are used, they must be fired at the atom with enough kinetic energy to overcome the electric repulsion between the proton and atom
atom with enough kinetic energy to overcome the electric repulsion between the proton and atomphysics
complete the following sentence.Time period of oscillating of a simple pendulum is dependent on...
complete the following sentence.Time period of oscillating of a simple pendulum is dependent on...
physicsGeneral
maths-
Let the eleven letters .....,K denote an arbitrary permutation of the integers (1, 2,.....11), then 
Given set of numbers is {1, 2,....11} in which 5 are even six are odd, which demands that in the given product it is not possible to arrange to subtract only even number from odd numbers. There must be at least one factor involving subtraction of an odd number form another odd number. So at least one of the factors is even. Hence product is always even
Let the eleven letters .....,K denote an arbitrary permutation of the integers (1, 2,.....11), then
maths-General
Given set of numbers is {1, 2,....11} in which 5 are even six are odd, which demands that in the given product it is not possible to arrange to subtract only even number from odd numbers. There must be at least one factor involving subtraction of an odd number form another odd number. So at least one of the factors is even. Hence product is always even
physics-
The following diagram indicates the energy levels of a certain atom when the system moves from 
level to 
, emitting a photon of wavelength 
. The wavelength of photon produced during its transition from 
level to is
The following diagram indicates the energy levels of a certain atom when the system moves from level to , emitting a photon of wavelength . The wavelength of photon produced during its transition from level to is
physics-General
physics
pitch of screw gauge is 1 mm and there are 100 divisions on the circular scak. What measurin the diametcr of a wire, the linear scale reads, 1 mm and 47t division on the circular scale coincide with the reference line. The lengthof the wire 155.6 cm. What will be the curved surface area (in cm2 of the wire in appropriate number of significant figures.
pitch of screw gauge is 1 mm and there are 100 divisions on the circular scak. What measurin the diametcr of a wire, the linear scale reads, 1 mm and 47t division on the circular scale coincide with the reference line. The lengthof the wire 155.6 cm. What will be the curved surface area (in cm2 of the wire in appropriate number of significant figures.
physicsGeneral
physics-
The nucleus 
after two successive 
decays will give
The nucleus after two successive decays will give
physics-General
physics
The screw gauges shown above has a zero error of -0.02 and 100 divisions on the circular scak What is the diameter of wire?
The screw gauges shown above has a zero error of -0.02 and 100 divisions on the circular scak What is the diameter of wire?
physicsGeneral
maths-
The number of ways of dividing 52 cards amongst four players equally, are
Required number of ways
.
.The number of ways of dividing 52 cards amongst four players equally, are
maths-General
Required number of ways
.
.physics-
The half-life of radioactive Radon is 3.8 days. The time at the end of which (1/20)th of the Radon sample will remain undecayed is (given 
The half-life of radioactive Radon is 3.8 days. The time at the end of which (1/20)th of the Radon sample will remain undecayed is (given
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