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Prove that ( √2+√5 ) is irrational

Given: √2+√5 Prove that We need to prove√2+√5 is an irrational number. Proof: Let us assume that √2+√5 is a rational number. A rational... View Article

How does formation of zygote occurs internally?

A biological process in which the fusion of the male and the female gamete occurs is called fertilization. The sperms are released from the male... View Article

What are the advantages of classifications of organisms?

There are different forms of organisms on earth, from minute bacteria to large elephants. It was very difficult to study all the life forms.... View Article

define projectile and write two examples?

Projectile may be stated as when an object is thrown into space and only the gravitational force is acted on it then it is termed as projectile.... View Article

What is the difference between kharif and rabi crops.

The difference between kharif and rabi crops: Kharif Crops Rabi crops The crops are sown at the beginning of the rainy season. Usually in... View Article

Calculate the force required to lift an object of mass 10kg

Given Mass = 10kg We need to find force We know that F=m X g where F=force,m=mass of object,g=acceleration due to gravity g=9.8 F=10 X 9.8=98N... View Article

What is use of microorganisms?

Microorganisms or microbe is an organism  that is invisible to naked eye and can be seen by using microscope. These can be unicellular... View Article

Is leucoplast a living component of cell ?

Leucoplast is a kind of plastid present in the cell and is a colorless component. It helps in the storage of various food products, like... View Article

What is a shot circuit

Short circuit: When the current in the circuit increases heavily and the electrical connection draws excess of current from the supply is called... View Article

Define reflected ray

A ray of light or another form of radiant energy that is thrown back from a nonpermeable or nonabsorbing surface is called reflected ray. The ray... View Article

Define charge

A charge is a subatomic particle property that helps to experience a force when placed in an electric field. Positive and negative are the two... View Article

An electric lamp of 100 Ω, a toaster of resistance. 50 Ω, and a water filter of resistance 500 Ω are connected in parallel to a 220 V source. What is the resistance of an electric iron connected to the same source that takes as much current as all to the same source that takes as much current as all three appliances, and what is current through it

Given R₁ = 100 Ω, R₂ = 50 Ω and R₃ = 500 Ω We needto find total resistance and current Total resistance= 1/R = 1/R₁ + 1/R₂... View Article

If cosecA=2 then obtain the value of cotA+sinA/1+cosA

Given CosecA = 2 We need to find the value of cotA+sinA/1+cosA Solution Sin A = 1/2------------(i) {sin A= 1/Cosec A} By trigonometric... View Article

Solve fr x:3x+4y=85; 6x+7y=20

Given: 3x+4y=85-----(1) 6x+7y=20-------(2) Multiplying equation (1) by 2 we get, 6x + 8y= 170 ------(3) Solving equation (2) and (3) we get 6x +... View Article

What is the force of gravity acting on a point of mass of 1 kg released from the height of 1 m from the surface of the earth; the radius of earth is equal to 6.4 x 10 to the power 6 metre of 8 is equal to 6 x 10 to the power 24 kg?

Given: Mass of earth m1 =6 × 1024 kg Mass of the object m2 = 1 kg Radius of the earth =6.4 × 106 m We need to find the force of gravity... View Article

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