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Which will be the unknown nucleus formed when 22Ne10 decays into two α-particles and an unknown nucleus?
A
Fluorine
B
Carbon
C
Neon
D
Oxygen
Correct Answer:
Carbon
The reaction is given as: 22Ne10 ➔ 2 2He4 + 6X14. Therefore, the unknown nucleus is 6C14.
The predicate in a where clause can involve Boolean operations such as and. The result of true and unknown is_______ false and unknown is _____ while unknown and unknown is _____
A
Unknown, unknown, false
B
True, false, unknown
C
True, unknown, unknown
D
Unknown, false, unknown
A nucleus having mass number 240 decays by α-emission to the ground state of its daughter nucleus. The Q value of the process is 5.26 MeV. The energy (in MeV) of the α particle is
A
5.26
B
5.17
C
5.13
D
5.09
Consider the following statements regarding double fertilization and choose the correct answer:
1. At the time of the sperm's approach to the egg nucleus, the male nucleus has the appearance of a continuous thread rolled into a ball
2. It is only the presence of the two nucleoli which serves to distinguish the fertilized egg from the unfertilized egg
3. Finally, the male nucleolus increases in size and fuses with the female nucleolus thus closing the phenomenon of sexual union of the nuclei
4. The fusion of the male gamete with the secondary nucleus results in the formation of a sister embryo
A
Only 1, 2 and 3 are true
B
Only 2, 3 and 4 are true
C
Only 1, 3 and 4 are true
D
Only 1, 2 and 4 are true
Read the following passage carefully and choose the most appropriate answer to the question out of the four alternatives.
Implanting standards, right values, the science of good and evil are an essential part of education. Many forces thwart this to work, but two of the most serious hindrances to it are examinations and specialization. The examination system is both an opiate and a poison. It is an opiate because it lulls Man into believing that all is well when most is ill. It is a poison because it paralyses or at least slows down the natural activities of the healthy mind. Man finds himself a creature of unknown capacities in an unknown world, wants to learn what the world is like, what he should be and do in it. To help him in answering these questions is the one and only purpose of education. However, tests of progress are useful and necessary. Examinations are harmless when the examinee is indifferent to their result, but as soon as they matter, they begin to distort his attitude to education and to conceal its purpose. For disinterestedness is the essence of all good education and liberal education is impossible without it. The author considers specialization as :
A
A boon
B
An obstacle
C
A curse
D
A distraction
Read the following passage carefully and choose the most appropriate answer to the question out of the four alternatives.
Implanting standards, right values, the science of good and evil are an essential part of education. Many forces thwart this to work, but two of the most serious hindrances to it are examinations and specialization. The examination system is both an opiate and a poison. It is an opiate because it lulls Man into believing that all is well when most is ill. It is a poison because it paralyses or at least slows down the natural activities of the healthy mind. Man finds himself a creature of unknown capacities in an unknown world, wants to learn what the world is like, what he should be and do in it. To help him in answering these questions is the one and only purpose of education. However, tests of progress are useful and necessary. Examinations are harmless when the examinee is indifferent to their result, but as soon as they matter, they begin to distort his attitude to education and to conceal its purpose. For disinterestedness is the essence of all good education and liberal education is impossible without it. One of the core elements of education is :
A
A right value system
B
A good examination system
C
A system with extra-curricular activities
D
A system with specialization
Read the following passage carefully and choose the most appropriate answer to the question out of the four alternatives.
Implanting standards, right values, the science of good and evil are an essential part of education. Many forces thwart this to work, but two of the most serious hindrances to it are examinations and specialization. The examination system is both an opiate and a poison. It is an opiate because it lulls Man into believing that all is well when most is ill. It is a poison because it paralyses or at least slows down the natural activities of the healthy mind. Man finds himself a creature of unknown capacities in an unknown world, wants to learn what the world is like, what he should be and do in it. To help him in answering these questions is the one and only purpose of education. However, tests of progress are useful and necessary. Examinations are harmless when the examinee is indifferent to their result, but as soon as they matter, they begin to distort his attitude to education and to conceal its purpose. For disinterestedness is the essence of all good education and liberal education is impossible without it. The examination system is an opiate because
A
It paralyses the mind.
B
it lulls Man into believing that all is well when it is not.
C
It slows the natural actvities of Man.
D
It makes Man lazy
Read the following passage carefully and choose the most appropriate answer to the question out of the four alternatives.
Implanting standards, right values, the science of good and evil are an essential part of education. Many forces thwart this to work, but two of the most serious hindrances to it are examinations and specialization. The examination system is both an opiate and a poison. It is an opiate because it lulls Man into believing that all is well when most is ill. It is a poison because it paralyses or at least slows down the natural activities of the healthy mind. Man finds himself a creature of unknown capacities in an unknown world, wants to learn what the world is like, what he should be and do in it. To help him in answering these questions is the one and only purpose of education. However, tests of progress are useful and necessary. Examinations are harmless when the examinee is indifferent to their result, but as soon as they matter, they begin to distort his attitude to education and to conceal its purpose. For disinterestedness is the essence of all good education and liberal education is impossible without it. The purpose of education is
A
Performing well in exams.
B
Learning the right values.
C
Knowing what is right and wrong.
D
Helping man to understand his potential, the world around him and his role in it.
Read the following passage carefully and choose the most appropriate answer to the question out of the four alternatives.
Implanting standards, right values, the science of good and evil are an essential part of education. Many forces thwart this to work, but two of the most serious hindrances to it are examinations and specialization. The examination system is both an opiate and a poison. It is an opiate because it lulls Man into believing that all is well when most is ill. It is a poison because it paralyses or at least slows down the natural activities of the healthy mind. Man finds himself a creature of unknown capacities in an unknown world, wants to learn what the world is like, what he should be and do in it. To help him in answering these questions is the one and only purpose of education. However, tests of progress are useful and necessary. Examinations are harmless when the examinee is indifferent to their result, but as soon as they matter, they begin to distort his attitude to education and to conceal its purpose. For disinterestedness is the essence of all good education and liberal education is impossible without it. The author
A
Encourages indifference to the outcome of examinations.
B
Encourages examinations.
C
Encourages specialization.
D
Encourages learning.
Consider a nucleus with N neutrons and Z protons. If m
p
, m
n
and BE represents the mass of the proton, the mass of the neutron and the binding energy of the nucleus respectively and c is the velocity of light in free space, the mass of the nucleus is given by
A
Nm<sub>n</sub> + Zm<sub>p</sub>
B
Nm<sub>p</sub> + Zm<sub>n</sub>
C
Nm<sub>n</sub> + Zm<sub>p</sub> + $$\frac{{BE}}{{{c^2}}}$$
D
Nm<sub>p</sub> + Zm<sub>n</sub> + $$\frac{{BE}}{{{c^2}}}$$
Study the following statements.
1. Control room of the cell is Nucleus.
2. Nucleus was discovered by Robert Brown.
3. Nuclear envelope is absent in bacteria.
Which of the statement(s) given above is/are correct about nucleus?
A
Only 1
B
Only 2
C
1 and 2
D
1, 2 and 3