Find the equation of a line perpendicular to line 2y = 5x + 4 which passes through (4, 2).

• A. 5y - 2x -18 = 0
• B. 5y + 2x - 18 = 0
• C. 5y - 2x + 18 = 0
• D. 5y + 2x - 2 = 0

Simplify \(\frac{1}{3-√2}\) in the form of p + q√2

• A. \(\frac{7}{3}\) - \(\frac{1}{7?2}\)
• B. \(\frac{7}{3}\) + \(\frac{1}{7?2}\)
• C. \(\frac{3}{7}\) - \(\frac{1}{7?2}\)
• D. \(\frac{3}{7}\) + \(\frac{?2}{7}\)

A bar magnet is placed near and lying along the axis of a solenoid connected to a galvanometer. The pointer of the galvanometer shows no deflection when

• A. the magnet is moved away from the stationary solenoid
• B. the solenoid is moved away from the stationary magnet
• C. the magnet is moved towards the stationary solenoid
• D. there is no relative motion between the magnet and the solenoid

A ray of light travels obliquely from a less dense medium to a denser medium. Which of the following statements is true about the light?

• A. The wavelength of the light increases in the second medium
• B. The speed of the light increases in the second medium
• C. The light refracts towards the normal
• D. There Is a change in the frequency of the light

The amount of energy required to change a kilogram of ice in water without a change in temperature is

• A. heat capacity of ice
• B. specific heat capacity
• C. specific latent heat of vaporisation of ice
• D. specific latent heat of fusion of ice

If the solution set of \(x^{2} + kx - 5 = 0\) is (-1, 5), find the value of k.

• A. -6
• B. -4
• C. 4
• D. 5

when an importer has been overcharged for goods supplied, the exporter issues him with a?

• A. debit note
• B. preforma invoice
• C. letter of credit
• D. credit note

Water which rises above the water table in the soil and is held in fine medium pores between soil particles by surface tension is?

• A. hygroscopic water
• B. gravitational water
• C. capillary water
• D. percolating water

A freshwater plant such as water lily can solve the problem of buoyancy by the possession of?

• A. aerenchyma tissues
• B. dissected leaves
• C. thin cell walls of the epidermis
• D. water-repelling epidermis

If p and q are two non zero numbers and 18(p+q) = (18+p)q, which of the following must be true?

• A. q = 18
• B. p <1
• C. p = 18
• D. q< 1