If 1850 ÷ 25 + 1440 ÷ 40 - k + 40 × 5 = 1620 ÷ 18 ×

A simple microscope consists of :

Which of the following statements is true when we see 'rainbow'?

Which compound is used to prepare water proof clothes?

The hormone related to drought tolerance is-

What Type of Mirror Is Commonly Used as Rear-View Mirrors in Vehicles?

Adhesive force is the force of

The instrument which uses sound waves to measure the depth of oceans is –

Electrical fuse is used to interrupt excess of _________.

The energy of wind is-

Consider the following statements:

1. A flute of smaller length produces waves of lower