AP EAPCET Previous Year Papers & PYQ

A motor cyclist wants to drive in horizontal circles on the vertical inner surface of a large cylindrical wooden well of radius \(8.0 \mathrm{~m}\), with minimum speed of \(5 \sqrt{5} \mathrm{~ms}^{-1}\). The minimum value of coefficient of friction between the tyres and the wall of the well must be \(\left(g=10 \mathrm{~ms}^{-2}\right)\)

Which of the following represents the correct order of increasing electron gain enthalpy with negative sign for the elements?

1. Nitrogen (N) 2. Phosphorus (P) 3. Chlorine (Cl) 4. Fluorine (F)

When the temperature of an ideal gas is increased from 27\(^\circ\)C to 127\(^\circ\)C. Calculate the percentage increase in its \(v_{rms}\).

A glass flask weighting 390 g, having internal volume 500 cc just floats when half of it is filled with water. Specific gravity of the glass is

A metal tape is calibrated at \(25^{\circ} \mathrm{C}\). On a cold day when the temperature is \(-15^{\circ} \mathrm{C}\), the percentage error in the measurement of length is

(Coefficient of linear expansion of metal \(=1 \times 10^{-5}{ }^{\circ} \mathrm{C}^{-1}\))

The number of radial nodes and angular nodes of a \(4 f\)-orbital are respectively