NEET Practice Questions (MCQs) with Answers & Solutions

The text states: 'As compared to the dicot root which have fewer xylem bundles, there are usually more than six (polyarch) xylem bundles in the monocot root. Pith is large and well developed' in monocots, contrasting with dicots where 'The pith is small or inconspicuous.'

The text explicitly states: 'The parenchymatous cells which lie between the xylem and the phloem are called conjuctive tissue.' This is a feature common to both dicot and monocot roots described in the general root anatomy section.

The context states: 'When xylem and phloem within a vascular bundle are arranged in an alternate manner along the different radii, the arrangement is called radial such as in roots.'

The text describes the cortex as consisting 'of several layers of thin-walled parenchyma cells with intercellular spaces.' This is common to both dicot and monocot roots.

The text states: 'The outermost layer is epiblema. Many of the cells of epiblema protrude in the form of unicellular root hairs.' Root hairs are responsible for absorption.

$H_{\max} = \dfrac{u^2 \sin^2\theta}{2g} = \dfrac{280^2 \times (0.5)^2}{2 \times 9.8} = 1000\ \text{m}$.

$\dfrac{\Delta\rho}{\rho} = \dfrac{\Delta m}{m} + 2\dfrac{\Delta r}{r} + \dfrac{\Delta L}{L} = 0.5\% + 0.67\% + 0.4\% \approx 1.6\%$.

Both statements describe standard properties of the respective semiconductor devices.

$U = \tfrac{1}{2} L I^2 = \tfrac{1}{2} (4 \times 10^{-6})(2)^2 = 8\ \mu\text{J}$.

Zero net flux means inward and outward flux through the surface are equal (by Gauss's law, enclosed charge is zero).