Agniveer Navy flashcards

33 cards. Read the term and the definition here. The deck at the top of this page is optional.

Newton's Second Law

The net force on a body equals its mass times acceleration, written F = ma. It links force, mass and acceleration in SI units.

Ohm's Law

Current through a conductor is directly proportional to potential difference at constant temperature, so V = IR where R is resistance in ohms.

Photosynthesis Equation

Green plants use light to convert six carbon dioxide and six water molecules into one glucose and six oxygen molecules, releasing oxygen as a by-product.

pH Scale

A 0 to 14 scale of acidity: values below 7 are acidic, 7 is neutral, and above 7 is basic or alkaline.

Universal Blood Donor

O-negative red blood cells lack A, B and Rh antigens, so they can be transfused to patients of any ABO and Rh type in emergencies.

Mitochondria Function

Organelles in eukaryotic cells where aerobic respiration occurs, producing most of the cell's ATP energy supply.

Speed of Sound in Air

Sound travels through air at roughly 343 metres per second at 20 degrees Celsius, much slower than light in vacuum.

Newton's Third Law

For every action force there is an equal and opposite reaction force, acting on a different body, so forces always occur in pairs.

Area of a Circle

The area enclosed by a circle equals pi times the square of its radius, written A = πr².

Pythagoras Theorem

In a right-angled triangle the square of the hypotenuse equals the sum of squares of the other two sides: a² + b² = c².

Simple Interest Formula

Simple interest equals principal times rate times time divided by 100, written SI = PRT/100, with no compounding.

Quadratic Formula

For ax² + bx + c = 0 with a not zero, roots are x = [−b ± √(b² − 4ac)] / 2a.

Volume of a Sphere

The volume enclosed by a sphere of radius r is four-thirds of pi times r cubed, written V = (4/3)πr³.

Average Formula

The average or mean of a set equals the sum of all values divided by the number of values in the set.

Speed Distance Time

Speed equals distance divided by time; distance equals speed times time; time equals distance divided by speed.

Sum of First n Numbers

The sum of the first n natural numbers 1+2+…+n equals n multiplied by n+1, divided by 2.

HCF LCM Product Rule

For any two positive integers, their highest common factor multiplied by their lowest common multiple equals the product of the two numbers.

Navy Day Date

India observes Navy Day on 4 December, commemorating the 1971 missile boat attack on Karachi harbour during the Indo-Pakistani war.

INS Vikrant

India's first indigenously designed and built aircraft carrier, commissioned in 2022 and named after an earlier carrier of the same name.

Indian Navy Motto

The Indian Navy motto is 'Sham No Varunah', a Sanskrit phrase meaning may the Lord of Waters be auspicious unto us.

Param Vir Chakra

India's highest wartime gallantry decoration, awarded for conspicuous bravery or self-sacrifice in the presence of the enemy.

Tropic of Cancer in India

This latitude of about 23.5 degrees north passes through eight Indian states, including Gujarat, Rajasthan, Madhya Pradesh and West Bengal.

Constitution Commencement

The Constitution of India came into force on 26 January 1950, the date now celebrated annually as Republic Day.

Chandrayaan-3 Landing

India's Chandrayaan-3 mission soft-landed its Vikram lander near the Moon's south pole in August 2023, a first for any nation.

INS Arihant

India's first indigenously built nuclear-powered ballistic missile submarine, completing the sea leg of India's nuclear triad.

Alphabet Position Value

Letters are numbered A=1 through Z=26; the reverse position of any letter equals 27 minus its forward position.

Clock Angle Formula

The angle between clock hands at H hours and M minutes is the absolute value of 30H minus 5.5M degrees.

Syllogism Validity Rule

A conclusion follows from the premises only if it is true in every possible Venn diagram consistent with those premises.

Direction Sense Left Turn

Facing north, a left turn leads to west; facing east, a left turn leads to north. Turns are relative to current facing.

Odd One Out Strategy

Test each option against a shared property such as prime, square, cube or divisibility; the option failing that property is the answer.

Number Series Difference Rule

Find consecutive differences first; constant differences indicate arithmetic series, while constant ratios indicate geometric series.

Coding Decoding Shift

Compare each letter of the word with the code; a constant alphabet shift indicates Caesar-type coding, while reversing indicates mirror coding.

Blood Relation Mapping

Convert each statement into a family tree using symbols for parent, child, sibling and spouse, then read the required relationship from the tree.