The displacement time graphs of two moving particles make angles of 30° and 45° with the x- axis The ratio of the two velocities is

An elevator is going up. The variation in the velocity of the elevator is as given in the graph. What is the height to which the elevator takes the passengers

The mid‐point of the chord of the hyperbola is

Equivalent weight of in acidic, basic and neutral media are in the ratio of

For the synthesis of ammonia by the reaction in the Haber process, the attainment of equilibrium is correctly predicted by the curve

A 10 kg wt is suspended as shown below then Tension  & are

If ' ' is in equilibrium then tensions and are

Four forces of magnitude p, 2p, 3p, 4p act along the four sides of a square ABCD in cyclic order. The magnitude of resultant is

The resultant of the three displacement vectors and is

The table given below lists the bond dissociation energy (E _diss) for single covalent bonds formed between C and atoms A, B, D and E.

Which of the atoms has smallest size?

The locus of Z which lies in shaded region is best represented by

Six faces of a unbiased die are numbered with 2, 3, 5, 7, 11 and 13. If two such dice are thrown, then the probability that the sum on the uppermost faces of the dice is an odd number is

Here we used the concept of probability to find the answer. Probability theory is an area of mathematics that examines random events. A random event's outcome cannot be predicted before it happens, although it could take any of several different forms. So the probability that the sum on the uppermost faces of the dice is an odd number is 5/18.

The adjoining figure gives the road plan of lanes connecting two parallel roads AB and FJ. A man walking on the road AB takes a turn at random to reach the road FJ. It is known that he reaches the road FJ from O by taking a straight line. The chance that he moves on a straight line from the road AB to the road FJ is.

Nine points lie in a plane forming a square as shown

If N is the number of triangles with positive area, having three of these points as vertices, then the last digit of N is

The number of different triangles formed by joining the points A, B, C, D, E, F and G as shown in the figure given below is

A rectangle with sides 2m -1, 2n - 1 is divided into squares of unit length by drawing parallel lines as shown in the diagram.

The number of rectangles with odd side length is