- AMean, Median, and Mode
- BRange, Standard Deviation, and Variance
- CMean and Median
- DRange and Median
দেশ-মহাদেশ - Quiz
- AMutually Exclusive Event
- BSimple Event
- CExhaustive Event
- DNone of the options
- AHypothesis Testing
- BStatistical Hypothesis
- CNone of the options
- A Temperature
- BHumidity
- CPressure
- DFrequency
- AHertz
- BJoule
- CWatt
- DDecibel
- AThe speed of light is constant in all media.
- BThe speed of light is greater in a vacuum than in a medium.
- CThe speed of light is lower in a vacuum than in a medium.
- DThe speed of light is higher in a medium than in a vacuum.
- A Red
- BGreen
- CBlue
- DYellow
- AReflection
- BAbsorption
- CRefraction
- DEmission
- ARed
- BGreen
- CBlue
- DYellow
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🟢 Correct Answers: 🔴 Wrong Answers:
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Quiz Information
Quiz Information
Quiz Platform FAQ
General Information
- Number of Questions: Each quiz consists of 10 questions.
- Time Limit: You have 30 seconds per question. The total time to complete the quiz is 5 minutes.
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- Result Analysis: After completing the quiz, you will see a results page with the following details:
- Correct Option for each question.
- Your Selected Option for each question.
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Quiz Analytics
দেশ-মহাদেশ - Quiz
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Time Taken: Questions: Answered: Not Answered:
Correct Answer:
Wrong Answer:
Percentage: %
- A. Mean, Median, and Mode
- B. Range, Standard Deviation, and Variance
- C. Mean and Median
- D. Range and Median
Remarks:
Explanation:
Range, Standard Deviation, and Variance
- A. Mutually Exclusive Event
- B. Simple Event
- C. Exhaustive Event
- D. None of the options
Remarks:
Explanation: The correct answer is "Exhaustive Event". An exhaustive event is a set of events that includes all possible outcomes in a sample space. In other words, an exhaustive event is a collection of events that covers all possibilities and leaves no outcomes outside the set. This means that one of the events in the set must occur when an experiment is performed.
- A. Hypothesis Testing
- B. Statistical Hypothesis
- C. None of the options
Remarks:
Explanation: The correct answer is "Hypothesis Testing". Hypothesis testing is a formal statistical procedure used to make decisions about whether to accept or reject a hypothesis. It involves formulating a null hypothesis and an alternative hypothesis, collecting data, and using statistical methods to determine the likelihood that the data is consistent with the null hypothesis. If the data is unlikely to have occurred by chance alone, the null hypothesis is rejected in favor of the alternative hypothesis. Hypothesis testing is widely used in fields such as science, engineering, and business to make informed decisions based on empirical evidence.
- A. Temperature
- B. Humidity
- C. Pressure
- D. Frequency
Remarks:
Explanation:
Answer: d) Frequency
Explanation: The speed of sound in air is affected by temperature, humidity, and pressure, but it is not affected by the frequency of the sound wave.
- A. 1
- B. 2
- C. 3
- D. 4
Remarks:
Explanation:
Answer: b) 2
Explanation: A standing wave that is fixed at both ends can have a maximum of two nodes. One node will be located at the center of the wave, and the other node will be located at one end of the wave.
- A. Hertz
- B. Joule
- C. Watt
- D. Decibel
Remarks:
Explanation:
Answer: a) Hertz
Explanation: The frequency of light is measured in hertz (Hz), which is a unit of measurement for cycles per second.
- A. The speed of light is constant in all media.
- B. The speed of light is greater in a vacuum than in a medium.
- C. The speed of light is lower in a vacuum than in a medium.
- D. The speed of light is higher in a medium than in a vacuum.
Remarks:
Explanation:
Answer: a) The speed of light is constant in all media.
Explanation: The speed of light is a fundamental constant of nature and is always the same in a vacuum, air, water, glass, or any other medium.
- A. Red
- B. Green
- C. Blue
- D. Yellow
Remarks:
Explanation:
Answer: a) Red
Explanation: Red light has the longest wavelength of visible light, while violet light has the shortest.
- A. Reflection
- B. Absorption
- C. Refraction
- D. Emission
Remarks:
Explanation:
Answer: d) Emission
Explanation: Emission is the process by which light is produced by an atom when an electron moves from a higher energy level to a lower energy level and releases energy in the form of a photon.
- A. Red
- B. Green
- C. Blue
- D. Yellow
Remarks:
Explanation:
Answer: d) Yellow
Explanation: The primary colors of light are red, green, and blue. Yellow is a secondary color that is produced by combining red and green light.