Notes and Study material for Exams
The Enigmatic Vidhyadhara: Exploring the Lore and Legacy of Celestial Beings The realm of mythology is a tapestry woven with fantastical creatures, each embodying unique powers and representing diverse aspects of the human experience. Among these mythical beings, the Vidhyadhara stands out as a captivating figure, shrouded in mystery and intrigue. This article delves into … Read more
Science & TechnologyFor Notes Click on the topics [su_posts template=”templates/list-loop.php” posts_per_page=”100″ tax_term=”1321″ tax_operator=”0″ order=”desc”] Physical Science (I)System of Units: MKS, CGS and SI (II)Definition of speed,velocity, gravity, mass, weight, force, impact, work,power and energy. (III)Solar System, relative position of Earth with respect to Sun and other planets, movement of earth and moon in solar system, lunar and … Read more
As the RAS Exam is very dynamic we try to revise regularly the Prelims and Mains notes based on the lattest RAS syllabus. We request the students/followers/paid or unpaid students to help us to serve even better by identifying the topics/posts requires revision. Students may request the revision by copying the link of the post … Read more
Varahamihira: Pioneer in Indian Astronomy and Astrology Varahamihira, a renowned scholar and polymath of the 6th century CE, stands as a towering figure in the history of Indian astronomy and astrology. His contributions to these fields, documented in his seminal works, have left an indelible mark on the intellectual landscape of ancient India and continue … Read more
Aryabhata: The Father of Indian Astronomy and Mathematics Introduction Aryabhata, a brilliant mathematician and astronomer, stands as a towering figure in the history of Indian science. Born in 476 CE in the ancient city of Pataliputra (modern Patna), his contributions to mathematics, astronomy, and even the concept of zero, have left an indelible mark on … Read more
This module will teach you the basics of direct and indirect proportions. These concepts will further help you in time and work questions. Important Formulas – chain rule Direct Proportion Two quantities are said to be directly proportional, if on the increase or decrease of the one, the other increases or decreases the same … Read more
FRACTIONS Any unit can be divided into any numbers of equal parts, one or more of this parts is called fraction of that unit. e.g. one-forth (1/4), one-third (1/3), three-seventh (3/7) etc. The lower part indicates the number of equal parts into which the unit is divided, is called denominator. The upper part, which indicates the number … Read more
SURDS A surd is a square root which cannot be reduced to a rational number. For example, is not a surd. However is a surd. If you use a calculator, you will see that and we will need to round the answer correct to a few decimal places. This makes it less accurate. If … Read more
Relation between arc radius and angle Arc length = [radius • central angle (radians)] Arc length = circumference • [central angle (degrees) ÷ 360] Proof of the trigonometric ratios of complementary allied angles Two acute angles are complementary to each other if their sum is equal to 90°. In … Read more