If A, B and C can finish a piece of work in 12 days, 15 days and 20 days respectively If all the three work at it together and they are paid Rs 960 for the whole work, how should the money be divided among them ?

The upper range of the power of the eye lens in the above question no. 6 is

Which of the following is correct method for separating a mixture of following compounds?

Which statement is incorrrect?

Decreasing order of boiling point of I to IV follow:

Azulene  has dipole moment 0.8 D because

 can be differentiated by

The order in which the reagent must be used to separate the compound I - IV is

 can be differentiated by:

Find the size of image formed in the situation shown in figure.

Locate the image of the point object O in the situation shown in figure. The point C denotes the centre of curvature of the separating surface

An ellipse has the point and as its foci and as one of its tangent then the coordinate of the point where this line touches the ellipse are

So, the point of contact of tangent to ellipse is .

The arrangement of the ellipses in ascending order of their eccentricities when is given, Where S & are foci& is one end of the minor axis A) B) C) D)

oints ollipse 3where the normals to it are perpendicular to are

is a greatest circle incribed in and Greatest Ellipse is incribed in c = 0 If the eccentricities of are equal then the minor axis of is

Two thin lenses of focal lengths 1 f and 2 f are in contact and coaxial. The combination is equivalent to a single lens of power