Related Questions

The radiation pattern of Hertzian dipole in the plane perpendicular to dipole is a
A Null
B Circle
C Figure of eight
D None of the above
If the current gain of the amplifier is X, its voltage gain is Y, then its power gain will be
A $$\frac{{\text{X}}}{{\text{Y}}}$$
B X × Y
C X + Y
D X - Y
On selling a chair at 7% loss and a table at 17% gain, a man gains Tk 296. If he sells the chair at 7% gain and the table at 12% gain, then he gains Tk. 400. The actual price of the table is ---
A Tk. 2400
B Tk. 2200
C Tk. 1800
D Tk. 1600
While propagating through homogeneous, isotropic media,
A Directions of both the fields are orthogonal
B Both the fields are at right angles to the direction of propagation
C Both (A) and (B)
D Neither (A) nor (B)
Isotropic materials have the same __________ in all directions.
A Induced stresses
B Density
C Elastic properties
D Thermal properties
Isotropic materials are those which have the same
A Elastic properties in all directions
B Stresses induced in all directions
C Thermal properties in all directions
D Electric and magnetic properties in all directions
In a simple bending theory, one of the assumptions is that the material of the beam is isotropic. This assumption means that the
A Normal stress remains constant in all directions
B Normal stress varies linearly in the material
C Elastic constants are same in all the directions
D Elastic constants varies linearly in the material
Isotropic materials have the same __________ in all the directions.
A Thermal properties
B Elastic properties
C Stresses
D All of the above
Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young's modulus, G = Modulus of rigidity or shear modulus v = Poisson's ratio)?
A E = 2G (1 + v)
B E = G (1 + v)
C $${\text{E}} = \frac{{{\text{G}}\left( {1 + {\text{v}}} \right)}}{2}$$
D E = 2G (1 + 2v)
In isotropic turbulence, the __________ are equal to each other.
A Temporal velocity components
B Mean square of velocity fluctuations in the three co-ordinate directions
C Root mean square of velocity fluctuations in the three co-ordinate directions
D None of these

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