Maths-

#### If the system of equations has no solution, then

Maths-General

- 4
- 3
- 5
- 2

#### Answer:The correct answer is: 3

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### Related Questions to study

maths-

#### Consider the system of linear equations: , The system has

#### Consider the system of linear equations: , The system has

maths-General

physics-

#### Two bars of thermal conductivities and and lengths and respectively have equal cross-sectional area, they are joined lengths wise as shown in the figure. If the temperature at the ends of this composite bar is and respectively (see figure), then the temperature of the interface is

Temperature of interface

#### Two bars of thermal conductivities and and lengths and respectively have equal cross-sectional area, they are joined lengths wise as shown in the figure. If the temperature at the ends of this composite bar is and respectively (see figure), then the temperature of the interface is

physics-General

Temperature of interface

physics-

#### The plots of intensity of radiation wavelength of three black bodies at temperatures are shown. Then,

According to Wien’s law

And from the figure

Therefore,

And from the figure

Therefore,

#### The plots of intensity of radiation wavelength of three black bodies at temperatures are shown. Then,

physics-General

According to Wien’s law

And from the figure

Therefore,

And from the figure

Therefore,

physics-

#### A composite metal bar of uniform section is made up of length of copper, of nickel and of aluminium. Each part being in perfect thermal contact with the adjoining part. The copper end of the composite rod is maintained at and the aluminium end at . The whole rod is covered with belt so that no heat loss occurs at the sides. If and , then what will be the temperatures of and junctions respectively

If suppose and

Since all metal bars are connected in series

So

Hence, it

Similar if

Since all metal bars are connected in series

So

Hence, it

Similar if

#### A composite metal bar of uniform section is made up of length of copper, of nickel and of aluminium. Each part being in perfect thermal contact with the adjoining part. The copper end of the composite rod is maintained at and the aluminium end at . The whole rod is covered with belt so that no heat loss occurs at the sides. If and , then what will be the temperatures of and junctions respectively

physics-General

If suppose and

Since all metal bars are connected in series

So

Hence, it

Similar if

Since all metal bars are connected in series

So

Hence, it

Similar if

physics-

#### A student takes wax (specific heat ) and heats it till it boils. The graph between temperature and time is as follows. Heat supplied to the wax per minute and boiling point are respectively

Since specific heat

From graph it is clear that in a minute, the temperature is raised from to

Heat required for a minute

Also from graph, Boiling point of wax is

From graph it is clear that in a minute, the temperature is raised from to

Heat required for a minute

Also from graph, Boiling point of wax is

#### A student takes wax (specific heat ) and heats it till it boils. The graph between temperature and time is as follows. Heat supplied to the wax per minute and boiling point are respectively

physics-General

Since specific heat

From graph it is clear that in a minute, the temperature is raised from to

Heat required for a minute

Also from graph, Boiling point of wax is

From graph it is clear that in a minute, the temperature is raised from to

Heat required for a minute

Also from graph, Boiling point of wax is

maths-

#### If then A^{2}

#### If then A^{2}

maths-General

physics-

#### The coefficient of thermal conductivity of copper is 9 times that of steel. In the composite cylindrical bar shown in the figure, what will be the temperature at the junction of copper and steel?

Temperature of interface

It is given that So, if , then

It is given that So, if , then

#### The coefficient of thermal conductivity of copper is 9 times that of steel. In the composite cylindrical bar shown in the figure, what will be the temperature at the junction of copper and steel?

physics-General

Temperature of interface

It is given that So, if , then

It is given that So, if , then

physics-

#### Two metal cubes and of same size are arranged as shown in the figure. The extreme ends of the combination are maintained at the indicated temperatures. The arrangement is thermally insulated. The coefficients of thermal conductivity of and are and , respectively. After steady state is reached, the temperature of the interface will be

Temperature of interface

#### Two metal cubes and of same size are arranged as shown in the figure. The extreme ends of the combination are maintained at the indicated temperatures. The arrangement is thermally insulated. The coefficients of thermal conductivity of and are and , respectively. After steady state is reached, the temperature of the interface will be

physics-General

Temperature of interface

maths-

#### The perimeter of a is 6 times the A.M of the sines of its angles if the side is , then the angle *A* is

#### The perimeter of a is 6 times the A.M of the sines of its angles if the side is , then the angle *A* is

maths-General

maths-

If the angles of triangle are in the ratio 1:1:4 then ratio of the perimeter of triangle to its largest side

If the angles of triangle are in the ratio 1:1:4 then ratio of the perimeter of triangle to its largest side

maths-General

maths-

#### How to define Wavy Curve Method f(x)?

#### How to define Wavy Curve Method f(x)?

maths-General

maths-

#### The angles of a triangle are in the ratio 3:5:10.Then ratio of smallest to greatest side is

#### The angles of a triangle are in the ratio 3:5:10.Then ratio of smallest to greatest side is

maths-General

maths-

maths-General

maths-

#### The sides of a triangle are Then the greatest angle of the triangle is [AIEEE 2014]

#### The sides of a triangle are Then the greatest angle of the triangle is [AIEEE 2014]

maths-General

maths-

maths-General