90 % of the active nuclei present in a radioactive sample are found to remain undecayed after 1 day. The percentage of undecayed nuclei left two days will be:

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1. A sample of as iodine ion was administered to a patient in a carrier consisting of of stable iodine ion. After days of initial radioactivity was detected in the thyroid gland of the patient. The percentage of stable iodine ion that had migrated to the thyroid gland, if for iodide ion is days is

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2. A radioactive sample at any instant has its disintegration rate . After , the rate is . Then, the decay constant (per minute) is

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3. A proton is bombarded on a stationary lithium nucleus. As a result of the collision two -particles are produced. If the direction of motion of the -particles with the initial direction of motion makes an angle , then the kinetic energy of the striking proton is [Given, binding energies per nucleon of and , ]

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4. Given the masses of various atomic particles , , , where proton, neutron, electron, antineutrino and deuteron. Which of the following process is allowed by momentum and energy conservation ?

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5. Find the binding energy per nucleon for . Mass of proton mass of neutron and mass of tin nucleus (take

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Physics Most Viewed Questions

1. If and respectively denote energy and gravitational constant, then has the dimensions of:

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2. The de Broglie wavelength of an electron moving with kinetic energy of is nearly

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3. A car starts from rest and accelerates at At , a ball is dropped out of a window by a person sitting in the car. What is the velocity and acceleration of the ball at ? (Take

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4. A wheel with metallic spokes each long is rotated with a speed of in a plane perpendicular to a magnetic field of . The induced emf between the axle and rim of the wheel will be,

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5. A barometer is constructed using a liquid (density What would be the height of the liquid column, when a mercury barometer reads ?
(density of mercury

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Q. of the active nuclei present in a radioactive sample are found to remain undecayed after day. The percentage of undecayed nuclei left two days will be:

Using
at day

at days

Questions from Nuclei

1. A sample of as iodine ion was administered to a patient in a carrier consisting of of stable iodine ion. After days of initial radioactivity was detected in the thyroid gland of the patient. The percentage of stable iodine ion that had migrated to the thyroid gland, if for iodide ion is days is

2. A radioactive sample at any instant has its disintegration rate . After , the rate is . Then, the decay constant (per minute) is

4. Given the masses of various atomic particles , , , where proton, neutron, electron, antineutrino and deuteron. Which of the following process is allowed by momentum and energy conservation ?

5. Find the binding energy per nucleon for . Mass of proton mass of neutron and mass of tin nucleus (take

Physics Most Viewed Questions

1. If and respectively denote energy and gravitational constant, then has the dimensions of:

2. The de Broglie wavelength of an electron moving with kinetic energy of is nearly

3. A car starts from rest and accelerates at At , a ball is dropped out of a window by a person sitting in the car. What is the velocity and acceleration of the ball at ? (Take

4. A wheel with metallic spokes each long is rotated with a speed of in a plane perpendicular to a magnetic field of . The induced emf between the axle and rim of the wheel will be,

5. A barometer is constructed using a liquid (density What would be the height of the liquid column, when a mercury barometer reads ?
(density of mercury

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Q. of the active nuclei present in a radioactive sample are found to remain undecayed after day. The percentage of undecayed nuclei left two days will be:

Using at day at days

Questions from Nuclei

1. A sample of as iodine ion was administered to a patient in a carrier consisting of of stable iodine ion. After days of initial radioactivity was detected in the thyroid gland of the patient. The percentage of stable iodine ion that had migrated to the thyroid gland, if for iodide ion is days is

2. A radioactive sample at any instant has its disintegration rate . After , the rate is . Then, the decay constant (per minute) is

4. Given the masses of various atomic particles , , , where proton, neutron, electron, antineutrino and deuteron. Which of the following process is allowed by momentum and energy conservation ?

5. Find the binding energy per nucleon for . Mass of proton mass of neutron and mass of tin nucleus (take

Physics Most Viewed Questions

1. If and respectively denote energy and gravitational constant, then has the dimensions of:

2. The de Broglie wavelength of an electron moving with kinetic energy of is nearly

3. A car starts from rest and accelerates at At , a ball is dropped out of a window by a person sitting in the car. What is the velocity and acceleration of the ball at ? (Take

4. A wheel with metallic spokes each long is rotated with a speed of in a plane perpendicular to a magnetic field of . The induced emf between the axle and rim of the wheel will be,

5. A barometer is constructed using a liquid (density What would be the height of the liquid column, when a mercury barometer reads ? (density of mercury

Latest Updates

Using
at day

at days

5. A barometer is constructed using a liquid (density What would be the height of the liquid column, when a mercury barometer reads ?
(density of mercury