کامپٹن اثر ______ کے ساتھ وابستہ ہے؟
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A. Beta Rays
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B. None of these
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C. Alpha Rays
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D. X-Rays
Explanation
- The Compton Effect describes the scattering of X-rays when they collide with electrons, causing a change in wavelength.
- This effect provided key evidence for the particle nature of light (photon theory).
- It is significant in quantum mechanics.
مندرجہ ذیل میں سے کون سا پروجیکشن زاویے کا نتیجہ سب سے بڑی حد میں ہوگا؟
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A. 60°
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B. 20°
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C. None of these
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D. 45°
Explanation
- The maximum range in projectile motion occurs at a launch angle of 45°, assuming no air resistance.
- At this angle, the horizontal and vertical components of velocity are optimally balanced, leading to the greatest distance covered.
جب آواز ایک میڈیم سے دوسرے میڈیم میں داخل ہوتی ہے تو کیا تبدیل نہیں ہوتا؟
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A. Speed
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B. None of these
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C. Wavelength
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D. Frequency
Explanation
- When sound travels from one medium to another, speed and wavelength change due to the change in the medium's properties.
- Frequency remains constant because it is determined by the source of the sound, not the medium.
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A. None of these
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B. Friend
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C. Accomplice
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D. Operator
Explanation
- "Accomplice" refers to someone who helps another person in committing a crime or conspiracy.
- Accomplice means ساتھی
- It is the most fitting term for someone involved in a conspiracy.
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A. None of these
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B. A mutation in DNA
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C. A gene variant at a specific locus
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D. A trait that is expressed
Explanation
- An allele is a different version of a gene found at the same locus (position) on homologous chromosomes.
- Alleles determine variations in traits, such as eye color or blood type.
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A. Cat
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B. None of these
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C. Cow
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D. Bear
Explanation
- Lions roar, while bears growl.
- Cats meow, Cows moo, and Elephants trumpet.
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A. Potential difference
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B. Concentration
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C. None of these
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D. Current
Explanation
- In voltammetry, the potential difference (voltage) is controlled and varied while measuring the resulting current.
- This technique helps analyze redox reactions and detect specific ions or compounds in a solution.
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A. With, on
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B. With, at
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C. None of these
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D. To, on
Explanation
- My results will lead to future research on the topic.
- میرے نتائج اس موضوع پر مستقبل کی تحقیق کا باعث بنے گا۔
- "Lead to" is the correct phrase meaning to cause or result in something.
- "Research on" is used to specify the topic being studied.
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A. None of these
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B. To confess fully
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C. To praise oneself
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D. To destroy before it
Explanation
- To make a clean breast of means to admit or confess something honestly and completely.
- It is often used when someone reveals a truth they were hiding.
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A. Imitation and conformity
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B. None of these
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C. Self-trust
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D. Self-expression
Explanation
- In Self-Reliance, Emerson emphasizes individualism and original thought, rejecting imitation and societal conformity.
- He argues that people should trust their own instincts and avoid blindly following others.
