USE OF ACCUSATIVE CASE OBJECTIVE CASE PERSONAL PRONOUN ENGLISH GRAMMAR IMPORTANT

Use of lichens in case of pollution is

STATEMENT - 1 : Image formed by a convex mirror is always virtual, erect and diminished. STATEMENT - 2 : In case of a convex mirror the image is erect and virutal, when the object is placed between focus and pole. STATEMENT - 3 : In case of a concave mirror the image is real, when the object is placed between focus and centre of curvature.

Why is sulphuric acid used in the preparation of HCI and HNO_3 ? Give equations in both cases.

Sometimes, it is possible to separate two sulphide ores by adjusting proportion of oil to water or by using depressants. In case of an ore containing ZnS and PbS, the depresent used is

Each of the following letters from English alphabet has two lines of symmetry. Identify lines of symmetry in each case: (i) H (ii) I (iii) O

Use of liches and Nerium in case of pollution is

State True or False: We usually use small case letters to name a point.

An aqueous solution of CuSO_(4) is electrolyszed using Pt electrodes in one case and Cu electrodes in another case. What are the products of electrolysis in both the cases ?

In this passage a brief idea is given of the motion of the rolling bodies on an inclined plane. We will consider three cases: objects are released on an incline plane Case-A: which is smooth. Case-B: where friction is insufficient to provide pure rolling. Case-C: where friction is sufficient to provide pure rolling. Force diagram for three cases are as follows: (where symbols have their usual meanings) If the four objects given in the above question are of same mass, same radius having the same friction coefficient and are released from the same height, then at the bottom the object which will have least kinetic energy for case B will be the:

State the energy changes in the following cases while in use : A ceiling fan