Maths-
General
Easy
Question
If the sides be a, b, c then 
=
- c / r 3
- c / r 2
- c / r
- None of these
The correct answer is: c / r 3
Related Questions to study
Maths-
In any ABC, cosA + cosB + cosC =
In any ABC, cosA + cosB + cosC =
Maths-General
Maths-
In any ABC, sinA + sinB + sinC =
In any ABC, sinA + sinB + sinC =
Maths-General
Physics-
The length of a rubber cord is 
metre when the tension is 4 N and 
metre when the tension is 6N. The length when the tension is 9 N, is
The length of a rubber cord is metre when the tension is 4 N and metre when the tension is 6N. The length when the tension is 9 N, is
Physics-General
Physics-
Coefficient of isothermal elasticity 
and coefficient of adiabatic elasticity 
are related by 
Coefficient of isothermal elasticity and coefficient of adiabatic elasticity are related by
Physics-General
Physics-
A wire of diameter 
breaks under a tension of 
. Another wire, of same material as that of the first one, but of diameter 
breaks under a tension of
A wire of diameter breaks under a tension of . Another wire, of same material as that of the first one, but of diameter breaks under a tension of
Physics-General
Physics-
If S is stress and Y is Young’s modulus of material of a wire, the energy stored in the wire per unit volume is
If S is stress and Y is Young’s modulus of material of a wire, the energy stored in the wire per unit volume is
Physics-General
Physics-
A solid sphere of radius r made of a material of bulk modulus K is surrounded by a liquid in a cylindrical container. A massless piston of area a floats on the surface of the liquid. When a mass m is placed on the piston to compress the liquid, the fractional change in the radius of the sphere (dr/r) is
A solid sphere of radius r made of a material of bulk modulus K is surrounded by a liquid in a cylindrical container. A massless piston of area a floats on the surface of the liquid. When a mass m is placed on the piston to compress the liquid, the fractional change in the radius of the sphere (dr/r) is
Physics-General
Physics-
Which of the following rods of same material undergoes maximum elongation when subjected to a given force?
Which of the following rods of same material undergoes maximum elongation when subjected to a given force?
Physics-General
Physics-
A tensile force of 
doubles the length of a rubber band of cross-sectional area
The Young’s modulus of elasticity of the rubber band is
A tensile force of doubles the length of a rubber band of cross-sectional area The Young’s modulus of elasticity of the rubber band is
Physics-General
Physics-
The twisting couple per unit twist for a solid cylinder of radius 3 cm is 0.1 N-m. The twisting couple per unit twist, for a hollow cylinder of same material with outer and inner radius 5 cm and 4 cm respectively will be
The twisting couple per unit twist for a solid cylinder of radius 3 cm is 0.1 N-m. The twisting couple per unit twist, for a hollow cylinder of same material with outer and inner radius 5 cm and 4 cm respectively will be
Physics-General
Maths-
In an equilateral triangle the in-radius and the circum-radius are connected by -
In an equilateral triangle the in-radius and the circum-radius are connected by -
Maths-General
Maths-
If the sides of a triangle are 3 : 7 : 8 then R : r =
If the sides of a triangle are 3 : 7 : 8 then R : r =
Maths-General
Maths-
In a triangle ABC,
is equal to -
In a triangle ABC, is equal to -
Maths-General
Maths-
In a ABC, 2R2 sinA sinB sinC =
In a ABC, 2R2 sinA sinB sinC =
Maths-General
Maths-
If 8R2 = a2 + b2 + c2, then the is -
If 8R2 = a2 + b2 + c2, then the is -
Maths-General
