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Question 1580

India is the largest producer and exporter of :

ACopper

BMica

CTea

DZinc

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B. MicaThe largest deposit of mica is at Koderma district in Jharkhand.

Question 1579

Gold is mainly found in:

AKolar

BKhetri

CPanna

DJharia

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A. KolarKolar is in Karnataka.

Question 1578

Name the author of the book Discovery of India.

AJawahar Lal Nehru

BKiran Desai

CK Natwar Singh

DIndira Gandhi

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A. Jawahar Lal NehruExplanation not yet available.

Question 1577

Isaac Newton invented:

AThermometer

BReflecting Telescope

CHydraulic Accumulator

DTransistor

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B. Reflecting TelescopeSir Isaac Newton invented the Reflecting Telescope in 1668. Unlike earlier refracting telescopes that used lenses, Newton’s design used a concave mirror to reflect and focus light. This eliminated chromatic aberration (color distortion) caused by lenses and significantly improved image clarity. Newton’s reflecting telescope became a major advancement in astronomical observation. Other options (for context) Thermometer: Invented by Galileo Galilei (early version) and later improved by Daniel Gabriel Fahrenheit. Hydraulic Accumulator: Invented by William Armstrong. Transistor: Invented much later (in 1947) by John Bardeen, William Shockley, and Walter Brattain.

Question 1576

Where is Dachigam National Park located?

AUttarakhand

BUttar Pradesh

CJammu & Kashmir

DHimachal Pradesh

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C. Jammu & KashmirExplanation not yet available.

Question 1575

Blood Circulation was discovered by?

AMary Anderson

BWilliam Harvey

CVirginia Apgar

DRobert Feulgen

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B. William HarveyWilliam Harvey, an English physician, discovered the process of blood circulation in 1628. He demonstrated that the heart acts as a pump to circulate blood continuously throughout the body via a closed system of arteries and veins. His work, published in "De Motu Cordis" (On the Motion of the Heart and Blood), laid the foundation for modern cardiovascular physiology. Other options (for context) Mary Anderson: Invented the windshield wiper, not related to medicine. Virginia Apgar: Developed the Apgar score for assessing newborn health. Robert Feulgen: Discovered a staining technique for DNA, not blood circulation.

Question 1574

Which is the second highest civilian award given in India?

ABharat Ratna

BPadma Vibhushan

CPadma Bhushan

DPadma Shri

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B. Padma VibhushanExplanation not yet available.

Question 1573

The pale yellow colour of urine is due to the presence of which pigment?

AUrophyll

BUrochrome

CChlorophyll

DChloroplast

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B. UrochromeThe pale yellow colour of urine is due to the presence of the pigment Urochrome. Urochrome is a waste product formed from the breakdown of hemoglobin in red blood cells. It is produced when hemoglobin is metabolized into urobilin and then excreted through urine. The intensity of the yellow color can vary depending on hydration levels — darker urine indicates dehydration, while pale urine indicates proper hydration. Other options (for context) Urophyll: No such pigment exists in human physiology. Chlorophyll: Green pigment found in plants, not in urine. Chloroplast: Cell organelle in plants where photosynthesis occurs, not a pigment.

Question 1572

Number of players in a Kabaddi team is:

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B. 7Explanation not yet available.

Question 1571

Human beings hearing range is:

A30 to 30,000 Hz

B50 to 50,000 Hz

C20 to 20,000 Hz

D40 to 40,000 Hz

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C. 20 to 20,000 HzThe normal hearing range of human beings is from 20 Hz to 20,000 Hz (20 kHz). Sounds below 20 Hz are called infrasonic sounds, while those above 20,000 Hz are known as ultrasonic sounds, both of which are inaudible to humans. With age or prolonged exposure to loud noise, the upper hearing limit tends to decrease, reducing sensitivity to high-frequency sounds. Other options (for context) 30 to 30,000 Hz: Incorrect — exceeds the upper audible limit for humans. 50 to 50,000 Hz: Incorrect — animals like dogs and bats can hear this range, not humans. 40 to 40,000 Hz: Incorrect — the human ear cannot detect frequencies that high.

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Explore the question bank

India is the largest producer and exporter of :

Gold is mainly found in:

Name the author of the book Discovery of India.

Isaac Newton invented:

Where is Dachigam National Park located?

Blood Circulation was discovered by?

Which is the second highest civilian award given in India?

The pale yellow colour of urine is due to the presence of which pigment?

Number of players in a Kabaddi team is:

Human beings hearing range is:

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