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🇮🇳 CSIR NET Life Sciences · flashcards
CSIR NET Life Sciences Part A Flashcards
50 question-and-answer cards covering Part A as it is examined in CSIR NET Life Sciences. 24 of them are printed below, taken from across the deck — no signup, no paywall on the preview.
24 sample cards from the Part A deck
Sampled from the end of the deck, so these are different cards from the ones shown on the syllabus page.
What is the formula for the arithmetic mean (average) of n numbers?
Average = (sum of all observations) divided by (number of observations, n).
If the average of 5 numbers is 20, what is their total sum?
100. Sum = average x count = 20 x 5 = 100.
What are the algebraic identities for (a + b) squared and (a - b) squared?
(a + b) squared = a squared + 2ab + b squared; (a - b) squared = a squared - 2ab + b squared.
What is the algebraic identity for a squared minus b squared?
a squared - b squared = (a + b)(a - b).
How do you convert a fraction to a percentage?
Multiply the fraction by 100. For example, 1/4 = (1/4) x 100 = 25 percent.
What is 20 percent of 150?
30. (20/100) x 150 = 0.2 x 150 = 30.
In time and work, if A can finish a job in 10 days, what fraction of the work does A do in one day?
1/10 of the work per day. Work rate = 1 divided by the number of days to complete the job.
If A does a job in 6 days and B in 12 days, how long do they take working together?
4 days. Combined rate = 1/6 + 1/12 = 3/12 = 1/4, so they finish in 4 days.
What is the formula for simple interest?
Simple Interest (SI) = (P x R x T) / 100, where P is principal, R is annual rate percent, and T is time in years.
What is the compound interest formula for the amount after T years compounded annually?
Amount A = P x (1 + R/100) raised to the power T; Compound Interest = A - P.
What is the relationship between speed, distance, and time?
Speed = Distance / Time; therefore Distance = Speed x Time and Time = Distance / Speed.
How do you convert a speed from km/h to m/s?
Multiply by 5/18. For example, 36 km/h = 36 x 5/18 = 10 m/s.
What is the relationship linking HCF and LCM of two numbers with the numbers themselves?
Product of the two numbers = HCF x LCM. So one quantity can be found if the other three are known.
What is the HCF and LCM of 12 and 18?
HCF = 6 and LCM = 36. (12 = 2 squared x 3; 18 = 2 x 3 squared; HCF takes lowest powers, LCM takes highest powers.)
What is the formula for the area of a triangle given base and height?
Area = (1/2) x base x height.
What are the formulas for the area and circumference of a circle of radius r?
Area = pi x r squared; Circumference = 2 x pi x r.
How is profit (or loss) percentage calculated?
Profit percent = (Profit / Cost Price) x 100; Loss percent = (Loss / Cost Price) x 100. Profit = SP - CP.
An item bought for 200 is sold for 250. What is the profit percentage?
25 percent. Profit = 50; Profit percent = (50/200) x 100 = 25 percent.
In a pie chart, how many degrees represent a category that is 25 percent of the total?
90 degrees. The full circle is 360 degrees, so 25 percent = 0.25 x 360 = 90 degrees.
What does a bar graph display, compared to a pie chart?
A bar graph compares quantities across categories using the heights/lengths of bars; a pie chart shows each category as a proportion (slice) of a whole (100 percent).
If two quantities are in the ratio 2:3 and their sum is 50, what are the quantities?
20 and 30. Total parts = 5; each part = 50/5 = 10, so 2 parts = 20 and 3 parts = 30.
What are the formulas for permutations nPr and combinations nCr?
nPr = n! / (n - r)! (order matters); nCr = n! / [r! (n - r)!] (order does not matter).
How do the median and mode differ in definition?
The median is the middle value of data arranged in order; the mode is the value that occurs most frequently in the data set.
Name the common measures of dispersion in statistics.
Range, mean deviation, variance, and standard deviation - they measure the spread or variability of data about a central value.
What this deck covers
The Part A deck follows the CSIR NET Life Sciences Part A syllabus — 3 chapters and 32 topics — so questions land on material that is genuinely examinable rather than trivia around it. That works out to roughly 16.7 cards per chapter.
Answers are written to be recallable, not just readable — averaging about 83 characters, which is long enough to carry the reasoning and short enough to say out loud.
A deck like this earns its keep on the second and third pass. Read the syllabus first so you know the shape of the subject, then use the cards to find the specific facts that have not stuck.
Part A flashcards FAQ
How many Part A flashcards are in this CSIR NET Life Sciences deck?
50 cards. This page previews 24 of them, sampled evenly across the deck so you can judge the difficulty before installing anything.
Are these CSIR NET Life Sciences flashcards free?
Yes. The preview here is free to read with no signup, and the full 50-card deck is free inside the Examius app.
What do the Part A cards cover?
They follow the CSIR NET Life Sciences Part A syllabus — 3 chapters and 32 topics — so the questions track what is actually examinable.
How should I use these flashcards?
Read the syllabus first so you know the shape of the subject, then drill the deck. Examius schedules each card with spaced repetition, so cards you keep missing come back sooner and ones you know drift further apart.