construction 9 help

This laser consists of a discharge tube in the cylindrical shape containing helium Neon gas in the ratio 9:1 at a low pressure. Two mirrors M 1 and M 2 are placed at the ends to facilitate the longer availability of emitted photons. A large potential difference is applied between the a..

To construct a line parallel to a given line through a given poin..

>(iii) With S as centre and radius equal to DE draw an arc to cut this arc at T. (iv) Join QT and produce it to ..

Analysis for construction shows Analysis for construction: that you have to draw CF||BD Think how you can complete to meet DE produced at F. a parallelogram with DB and BC as consecutive sides. You will find the need to draw CF||D..

The figure below shows the construction of an electric motor. The main parts of an electric motor are: D.C. Motor the armature coil ABCD mounted on an axle the commutator that is a split ring divided in two parts S 1 and S 2 a pair of brushes B 1 and B 2 a horse - shoe electromagnet The c..

A photographic camera consists of a converging lens system at least one end of a box and a light sensitive film at the other end, a focusing device for adjusting the distance of the lens from the film and an exposure arrangement which provides the correct exposure. The object is placed in such a w..

The biogas plant is a brick and cement structure having the following five sections: Mixing tank present above the ground level. Inlet chamber: The mixing tank opens underground into a sloping inlet chamber. Digester: The inlet chamber opens from below into the digester which is a huge tan..

Produce AD to K such that AG = GK. Join KB and K..

Join AQ and B..