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How can we find if the water is fresh or dirty without using a microscope?

To test the water is fresh or dirty without using a microscope: Take a beaker, funnel and filter paper. Put the filter paper on the funnel.... View Article

Diffrence between voulentery and reflex action

Voluntary Actions Reflux actions These actions are the controlled actions. These actions are the spontaneous actions These actions are... View Article

A boy carrying a bag on his shoulders walking at angle of 90 degrees does any work or not

Given that A boy carrying a bag on his shoulders walking at an angle of 90 degrees. We need to check if the work id done. We know that the... View Article

Why does kmno4 shows d d transition

The metal ions in KMnO4 containing d electron and therefore charge transfer takes place from O– to Mn+. In fact, the lowest energy L→M... View Article

Explain principles of treatment of diseases

A disease is a condition that deteriorates the normal functioning of the cells, tissues, and organs. Diseases can be of two types Infectious... View Article

Why is the value of acceleration due to gravity 0 at the centre of the earth ? Prove with mathematical calculations .

The acceleration due to gravity is the measure of gravitational attraction that Earth exerts on a body. Now, this attraction is towards the... View Article

what is x when: 10+x /6-3+16=26

Given equation: 10+x/6-3+16=26 Combining all the terms on one side we get 10+x/6-3+16-(26)=0 10+x/6-3-10=0 x/6-3=0 Taking LCM and on solving... View Article

Shivangi had a picture that is 40 cm long and 28cm wide in the centre of the panel leaving a border of 1 cm on all side find the area of the panel and cover by the picture

Given that Length of the picture = 42cm Breadth of the picture= 30cm Border on all sides of the margin= 1cm So the area of the whole panel=... View Article

Take methane as an example and describe the reaction and ordering function of carbon compounds and write the chemical equation for these reaction can methane be added to condesation reaction. Specify

Methane is the simplest hydrocarbon with the chemical formula of CH4. It undergoes only a few chemical reactions. Oxidation of methane gives... View Article

Find the diameter if the radius is 8.8cm

Given that radius = 8.8cm We need to find out the diameter of the circle We know that the formula for Diameter = 2r Hence Substituting the... View Article

Why is fused calcium chloride or conc. Sulphuric acid is used in a desicator?

Anhydrous or fused calcium chloride is highly hygroscopic in nature it readily absorbs moisture, also it is deliquescent in nature and is... View Article

Na⁺ have completely filled K and L shells explain.

Answer: Sodium is a member of the alkali metal family with lithium and potassium. Being one of the two elements in our table salt is its biggest... View Article

What Makes HDPE have higher density and strength as compared to LDPE?

HDPE stands for high definition polyethylene LDPE stands for low definition polyethylene These two are the thermoplastics materials which comes... View Article

State: True or false When an electric current produces a heating effect but not a magnetic effect

False Explanation: An electric current produces a heating effect. Simultaneously, it also produces a magnetic field around it. It can be observed... View Article

Prepare a table having depicting names of endocrine glands and harmones secreted by them . State thier function

Glands Hormones secreted Functions Hypothalamus Anti-diuretic hormone (ADH), oxytocin Anti-diuretic hormone causes water reabsorption at the... View Article

Define muscualr force

The force applied by the portions of the body like arms or legs is called muscular force. The action of muscles created this force and is a also... View Article

A police jeep on a petrol duty on a national highways was moving with a speed of 54km/hr . In the same direction. It found that a theif was rushing in a car moving with a speed of 126km/hr. Police sub inspector fired at athe car of the theif with his service revolver with a muzzle speed of 100m/s. with what speed will the bullet hit the car of thief?

Given that Speed of the police jeep = 54km/h Now we will convert the speed from kilometers to meters Speed of police jeep =54km/h 1km/hr... View Article

Why do like poles of a magnet repel each other ? What is the name of this particular force?What makes metals attract themselves to the magnet?

Like poles of a magnet repel each other. This is because when the two magnets of like poles are kept facing each other the lines of forces are in... View Article

Find in metre the height of a pile of 25 books if each book is 3cm 5mm thick.

Given that height of each book is 3cm 5mm We need to find the height of a pile of 25 books in meters 1cm = 10mm so 3cm = 30cm3 cm 5 mm = 30... View Article

The numerator of a fraction is 4 less than denominator. If 1 is added to both its numerator and denominator, it becomes 1/2.Find the fraction

Given that The numerator of a fraction is 4 less than the denominator 1 is added to both its numerator and denominator, it becomes 1/2. So let... View Article

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