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A concave mirror produces three times magnified (enlarged) real image of an object placed at 10 cm in front of it. Where is the image located?

Magnification is the increase in the image size produced by spherical mirrors with respect to the object size. It is the ratio of the height of... View Article

What is the difference between open and closed circuit?

A circuit is said to be closed when every part of it is made of a conductor and on plugging in the key or on being complete, current flows... View Article

What is arbitrary motion?

Arbitrary mean the unknown path that cannot be calculated or exactly known. The arbitrary motion is used to denote growing or decaying... View Article

Mention a few examples of Push and Pull

Push is defined as the force that is responsible for an object to move from the state of rest. Examples : Pushing the trolley. Pushing of... View Article

What is periodic motion? Explain with example

A motion repeating itself at regular intervals is regarded as periodic motion. In simpler words, A motion that repeats itself after equal... View Article

What is the power factor of RLC circuit?

Power Factor of an alternating current circuit is the ratio of true power dissipation to the apparent power dissipation in the circuit. The... View Article

The output of the charge controller regulates the volt to ___________

The output of the charge controller regulates the volt to ______. Answer The output of the charge controller regulates the volt to 16 to 20... View Article

Which of the following is not a fundamental unit? 1) cm 2) kg 3) centigrade 4) volt

Answer: (4) Volt The International System of Units describes the fundamental units as the base units. Since these units are not derived from... View Article

The fractions with the same denominator are called____?

Fractions with the same denominators are called like fractions . To add fractions with like denominators , add the numerators , and write the sum... View Article

Show that every positive integer is either even or odd.

Let us assume that there exists the smallest positive integer that is neither odd nor even, say n. Since n is the least positive integer which is... View Article

A bag contains 5 red balls and some blue balls, if the probability of drawing a blue ball is double that of a red ball, then find the number of blue balls in the bag.

Let number of blue balls be x. Red balls are 5. Total balls = 5 + x P(E) = (Number of favourable outcomes/ Total number of outcomes) ∴ P... View Article

Convert a speed of 54 km per hour into metre per second

Answer: A kilometre is a unit of distance in the International System of Units (SI). It is denoted by km. Km is usually used to express the... View Article

Find the square root of 2304 by division method

We get a remainder 0 and quotient as 48 using division method. This shows that √2304 = √48 Hence, the answer is 48.... View Article

Write the product of the smallest 2 digit number with the greatest 5 digit number

The smallest two-digit number is 10. The largest 5-digit number is 99999. according to question, Their product = 10 × 99999 = 999990... View Article

Find the largest number which divides 70 and 125 leaving remainders 5 and 8 respectively

Answer: According to the given details We have to find the largest number which divides 70 and 125, leaving remainders 5 and 8. The given data... View Article

Find the square root of 9604 by prime factorization

Answer: Prime factorisation is a method to find the prime factors of a given number, say a composite number. These factors are nothing but the... View Article

Simple interest on an amount at 4% per annum for 13 months is more than the simple interest on the same sum for 8 months at 6% per annum by rs 40. what is the principal amount

We have to find the principal amount. Interest for 13 months at 4% Interest per year = 4 % interest per month = 4 ÷ 12 = 1/3 % Interest for... View Article

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