Q. In flowering plants, the process of pollination involves the transfer of pollen from the anther to the: (2021)
A.
Ovary
B.
Style
C.
Stigma
D.
Sepal
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Solution
Pollination is the transfer of pollen from the anther to the stigma of a flower, which is essential for fertilization.
Correct Answer:
C
— Stigma
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Q. In flowering plants, the process of pollination involves the transfer of pollen from the ____ to the ____. (2019)
A.
Ovary, Stigma
B.
Anther, Stigma
C.
Stigma, Ovary
D.
Filament, Anther
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Solution
Pollination is the transfer of pollen from the anther (male part) to the stigma (female part) of a flower.
Correct Answer:
B
— Anther, Stigma
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Q. In fluid mechanics, what does the term 'streamline' refer to? (2020)
A.
Path of a fluid particle
B.
Layer of fluid
C.
Viscous flow
D.
Turbulent flow
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Solution
A streamline refers to the path followed by a fluid particle in a steady flow.
Correct Answer:
A
— Path of a fluid particle
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Q. In forced oscillations, what is the effect of increasing the amplitude of the driving force?
A.
Decreases the amplitude of oscillation
B.
Increases the amplitude of oscillation
C.
Has no effect on amplitude
D.
Causes the system to stop oscillating
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Solution
Increasing the amplitude of the driving force generally increases the amplitude of the forced oscillation.
Correct Answer:
B
— Increases the amplitude of oscillation
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Q. In forced oscillations, what is the phase difference between the driving force and the displacement at resonance?
A.
0 degrees
B.
90 degrees
C.
180 degrees
D.
270 degrees
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Solution
At resonance, the phase difference between the driving force and the displacement is 0 degrees, meaning they are in phase.
Correct Answer:
A
— 0 degrees
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Q. In heat exchangers, which process is primarily utilized?
A.
Conduction
B.
Convection
C.
Radiation
D.
All of the above
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Solution
Heat exchangers primarily utilize conduction, convection, and radiation for heat transfer.
Correct Answer:
D
— All of the above
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Q. In heat transfer, what does the term 'thermal resistance' refer to?
A.
Resistance to heat flow
B.
Resistance to electrical flow
C.
Resistance to fluid flow
D.
None of the above
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Solution
Thermal resistance refers to the resistance to heat flow through a material.
Correct Answer:
A
— Resistance to heat flow
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Q. In her latest book, the author challenges the conventional wisdom surrounding success, arguing that it is not merely a product of hard work but is also _____ by luck and timing.
A.
diminished
B.
enhanced
C.
obscured
D.
neglected
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Solution
The word 'enhanced' indicates that luck and timing play a significant role in achieving success, complementing hard work.
Correct Answer:
B
— enhanced
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Q. In her latest book, the scientist emphasizes the importance of interdisciplinary approaches, suggesting that true innovation often occurs at the ______ of different fields.
A.
intersection
B.
periphery
C.
foundation
D.
exclusion
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Solution
The term 'intersection' implies a meeting point of different fields, which aligns with the idea of interdisciplinary approaches.
Correct Answer:
A
— intersection
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Q. In her memoir, the author reflects on her childhood with a sense of __________, acknowledging both the joys and the hardships she experienced.
A.
nostalgia
B.
regret
C.
indifference
D.
resentment
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Solution
The context suggests a reflective and positive view of childhood, making 'nostalgia' the appropriate choice.
Correct Answer:
A
— nostalgia
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Q. In her speech, the activist emphasized the importance of __________ in the fight against social injustice, calling for unity and collective action.
A.
division
B.
apathy
C.
solidarity
D.
indifference
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Solution
The context indicates a call for unity, making 'solidarity' the appropriate choice.
Correct Answer:
C
— solidarity
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Q. In her speech, the politician aimed to __________ the public's fears about the new policy by providing clear evidence of its benefits.
A.
exacerbate
B.
alleviate
C.
ignore
D.
validate
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Solution
The word 'alleviate' means to reduce or lessen, which fits the context of addressing public fears.
Correct Answer:
B
— alleviate
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Q. In her speech, the politician emphasized the importance of unity, stating that __________.
A.
division is the key to progress.
B.
we must work together to overcome challenges.
C.
individualism should be prioritized.
D.
conflict is inevitable in democracy.
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Solution
The emphasis on unity suggests that collaboration is essential, making option 1 the logical choice.
Correct Answer:
B
— we must work together to overcome challenges.
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Q. In her speech, the politician emphasized the need for unity, stating that division would only ________ the progress we have made.
A.
accelerate
B.
hinder
C.
celebrate
D.
facilitate
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Solution
The context suggests that division would negatively impact progress, making 'hinder' the most suitable choice.
Correct Answer:
B
— hinder
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Q. In her speech, the politician emphasized the need for ______ policies that would address both economic growth and environmental protection.
A.
short-sighted
B.
sustainable
C.
ineffective
D.
controversial
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Solution
The term 'sustainable' is appropriate here, as it refers to policies that can support long-term economic and environmental goals.
Correct Answer:
B
— sustainable
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Q. In her speech, the politician emphasized the need for __________ policies that would address both economic growth and environmental sustainability. (2023)
A.
short-sighted
B.
reactive
C.
holistic
D.
fragmented
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Solution
The context of addressing both economic and environmental issues suggests that holistic policies are necessary.
Correct Answer:
C
— holistic
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Q. In how many different ways can the letters of the word 'MATH' be arranged?
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Solution
The word 'MATH' has 4 distinct letters. The number of arrangements is 4! = 24.
Correct Answer:
B
— 24
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Q. In how many ways can 3 boys and 2 girls be seated in a row?
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Solution
The total number of arrangements is (3+2)! = 5! = 120.
Correct Answer:
B
— 60
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Q. In how many ways can 3 different colored balls be arranged in a line?
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Solution
The number of arrangements of 3 different colored balls is 3! = 6.
Correct Answer:
A
— 6
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Q. In how many ways can 3 different colored balls be arranged in a row? (2015)
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Solution
The number of arrangements of 3 different colored balls is 3! = 6.
Correct Answer:
A
— 6
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Q. In how many ways can 3 different colored balls be chosen from a set of 7?
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Solution
The number of ways to choose 3 from 7 is given by C(7,3) = 7!/(3!4!) = 35.
Correct Answer:
A
— 35
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Q. In how many ways can 3 different fruits be selected from a basket of 7 fruits? (2014)
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Solution
The number of ways to select 3 from 7 is C(7, 3) = 35.
Correct Answer:
A
— 35
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Q. In how many ways can 3 different gifts be distributed among 4 children?
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Solution
Each gift can go to any of the 4 children, so the total ways = 4^3 = 64.
Correct Answer:
A
— 64
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Q. In how many ways can 3 different letters be chosen from the word 'COMPUTE'? (2019)
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Solution
The number of ways to choose 3 letters from 8 is C(8, 3) = 56.
Correct Answer:
C
— 70
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Q. In how many ways can 3 different trophies be arranged on a shelf?
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Solution
The number of arrangements is 3! = 6.
Correct Answer:
A
— 6
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Q. In how many ways can 3 men and 2 women be arranged in a line if the men must be together?
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Solution
Treat the 3 men as one unit. So, we have 3 units (MMM, W, W). The arrangements = 3! * 3! = 36.
Correct Answer:
B
— 120
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Q. In how many ways can 3 prizes be awarded to 10 students?
A.
720
B.
1000
C.
120
D.
100
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Solution
The number of ways to award 3 prizes to 10 students is 10P3 = 10! / (10-3)! = 720.
Correct Answer:
A
— 720
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Q. In how many ways can 3 prizes be awarded to 5 students? (2021)
A.
60
B.
100
C.
120
D.
80
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Solution
The number of ways to award 3 prizes to 5 students is 5P3 = 60.
Correct Answer:
C
— 120
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Q. In how many ways can 3 prizes be distributed among 5 students? (2021)
A.
60
B.
100
C.
120
D.
80
Show solution
Solution
The number of ways to distribute 3 prizes to 5 students is 5P3 = 60.
Correct Answer:
C
— 120
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Q. In how many ways can 3 red balls and 2 blue balls be arranged in a row?
Show solution
Solution
The total arrangements = 5! / (3! * 2!) = 10.
Correct Answer:
A
— 10
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