midnight sun chapter 1

We know that energy falling in one second on the unit area of the earth's surface held normal to sun's rays is called solar constant S. Experimentally, S has been found to be equal to 1388 Wm - 2 . Let R be the radius of the sun and r be the radius of earth's orbit aro..

The Titius-bode law states that the distances of the planet from the sun follow a certain pattern when expressed in 'astronomical units' (A.U). [One AU is the distance of the Earth from the sun.] The pattern is: 0.7, 1.0, 1.6, ...... Identify the pa..

The mean distance from Venus to the Sun is about 1.08 × 10 9 km. Express this number in standard form. => 180,000,000 km or 108,000,000 km or 18,000,000 km or 1,080,000,000 km..

The mean distance from Venus to Sun is about 1.08 × 10 9 km. Express the number in standard form. => 1,080,000,000 km or 108,000,000 km or 180,000,000 km or 18,000,000 km..

The aphelion distance, perihelion distance of the earth from the sun are about 152 Gm and about 147 Gm. What is the length of the semi major axis of the orbit of the Earth around the sun? [1Gm = 10 9 meters. ] => 147 Gm or 152 Gm or 149.5 Gm or 5 Gm..

For each element of B there is one corresponding element of ..

For one element of A there is more than one corresponding element of B..

A function f : A g B is called a 1-1 mapping, if every element of f(A) does not have more than one pre-image. ..

An equation of one variable and of first order (i.e., its highest power is one) is called a Linear equation. Such an equation has only one solution. A solution is also called the 'root' of the given equation.An equation of one variable and of first order (i.e..

We have discussed earlier about right hand limit and left hand limit. Both these limits are called one sided limits. x approaches a from the right side and through values greater than a. For a function f(x), we say as left hand Limit, as x approaches a from the left and through the v..