Ask questions which are clear, concise and easy to understand.
Ask QuestionPosted by Abhishesh Paswan 5 years, 2 months ago
- 5 answers
Yogita Ingle 5 years, 2 months ago
Elasticity is the property of metal which helps in molding it into different shapes
Posted by Rajan Singh 5 years, 2 months ago
- 4 answers
Basamma.S. Naganagoudra Naganagoudra 5 years, 2 months ago
Gaurav Seth 5 years, 2 months ago
Power of a lens
Power of a lens is the ability to converge or diverge the ray of light falling on it.
Power of a lens is defined as reciprocal of focal length of the lens.
1
P=—–
f
A lens of small focal length has large power of converging or diverging a parallel beam of light.
Unit of power is Diopter (D)
Posted by Divya Saini Divya Saini 5 years, 2 months ago
- 2 answers
Abhishesh Paswan 5 years, 2 months ago
Kirti Deshwal 5 years, 2 months ago
Posted by Pratik Goyal 5 years, 2 months ago
- 1 answers
Yogita Ingle 5 years, 2 months ago
Two resistors of resistance R1 and R2 are connected in series. Let I be the current through the circuit. The current through each resistor is also I. The two resistors joined in series is replaced by an equivalent single resistor of resistance R such that the potential difference V across it, and the current I through the circuit remains same.
As , V = IR , V1 = IR1 , V2 = IR2
IR = IR1 + IR2
IR = I (R1 + R2)
Posted by Harshita Singh 5 years, 2 months ago
- 1 answers
Gaurav Seth 5 years, 2 months ago
We acquire knowledge and skills in our lifetime such as learning dance, music, physical fitness, etc. But these skills cannot be passed to our progenies because:
- Such characters or experiences acquired during one’s lifetime do not bring any change in the DNA of the germ cell.
- Only germ cells are responsible for passing on the characters from the parents to the progeny.
Posted by Harshita Singh 5 years, 2 months ago
- 2 answers
Gaurav Seth 5 years, 2 months ago
DNA copying is otherwise known as DNA replication which is the process of producing 2 identical copies of DNA from one original DNA molecule during cell division. DNA copying is important because it generates variation during sexual reproduction which leads to evolution. Also, DNA copying helps in transfer of information or characters from the parents to the offsprings.
Posted by Harshita Singh 5 years, 2 months ago
- 5 answers
King Adithya H M... 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
23 pairs of chromosomes are present in human beings. One pair of these are *** chromosomes.
Two types of *** chromosomes are there: XX and XY.
Gaurav Seth 5 years, 2 months ago
A)There are 23 pairs of chromosomes are present in humans.
B)One pair of chromosomes are present out of 23 chromosomes.
C)The chromosomes that decide the *** of an individual are *** chromosome. These are two in numbers X and Y. (XY) is present in males while (XX) is present in females.
Posted by Harshita Singh 5 years, 2 months ago
- 2 answers
Yogita Ingle 5 years, 2 months ago
It is due to biparental percentage. The genes on chromosomes which pass over to the next generation is partly derived from both the parents (mother and father). During fertilisation of egg by the sperm, new combination of chromosomes enter the zygote, due to which certain variations occur in the offsprings. Thus, brothers and sisters show variations in their complexion, habits and behaviour.
Gaurav Seth 5 years, 2 months ago
Answer:
It is due to biparental percentage. The genes on chromosomes which pass over to the next generation is partly derived from both the parents (mother and father). During fertilisation of egg by the sperm, new combination of chromosomes enter the zygote, due to which certain variations occur in the offsprings. Thus, brothers and sisters show variations in their complexion, habits and behaviour.
Posted by Sanjay Jain 5 years, 2 months ago
- 1 answers
Yogita Ingle 5 years, 2 months ago
Both bio-mass and hydro electricity are renewable sources of energy. Biomass is obtained from dead plants and animal wastes whereas hydro electricity is obtained from energy stored in water at some height. Energy from both these sources can be obtained again and again.
Posted by Manoj Goyal 5 years, 2 months ago
- 2 answers
Posted by Parth Ajmera 5 years, 2 months ago
- 3 answers
Ram Verma 5 years, 2 months ago
Posted by Parth Ajmera 5 years, 2 months ago
- 2 answers
A S 5 years, 2 months ago
Vishal Yadav 5 years, 2 months ago
Posted by Pawan Kumawat 5 years, 2 months ago
- 2 answers
Gourav Gupta 5 years, 2 months ago
Gaurav Seth 5 years, 2 months ago
The ability of the atom to lose electrons easily determines whether it is metallic or not. in small atoms, the number of shells are less and thus the free electrons present in the outer shell of the atom is more closer to the nucleus of the atom. due to this, the nuclear charge of the atom is more and thus does not allow the free electrons to flow freely. in the case of a larger atom, the number of shells are more and the free electrons in the last orbit are much farther away from the nucleus of the atom. due to this, the nuclear charge of the atom is less and easily allows the free electrons to flow and thus is more metallic.
Posted by Shakti Raj 5 years, 2 months ago
- 5 answers
Jaya Nidhi Dimple 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
Alkalis are bases which are completely soluble in water.
Sodium oxide and potassium oxide are alkalis which dissolve in water to form soluble bases sodium hydroxide and potassium hydroxide respectively.
Posted by Simran Kumari 5 years, 2 months ago
- 4 answers
Gourav Gupta 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
Glycolysis is the process in which glucose is broken down to produce energy. It produces two molecules of pyruvate, ATP, NADH and water. The process takes place in the cytosol of the cell cytoplasm, in the presence or absence of oxygen.
Siddharth K 5 years, 2 months ago
Posted by Simran Kumari 5 years, 2 months ago
- 4 answers
Sri Varshini Sudhakar 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
Excretion is the physiological process of elimination of metabolic waste from the body. The excretory products include amino acids, urea, uric acid, carbon dioxide, water, and ammonia.
The human excretory system comprises of the following excretory organs:
- A pair of kidneys
- A pair of ureters
- Urinary Bladder
- Urethra
Siddharth K 5 years, 2 months ago
Krishna Babu 5 years, 2 months ago
Posted by Sameer Gurjar 5 years, 2 months ago
- 2 answers
Gaurav Seth 5 years, 2 months ago
Galaxy: A system of billions of stars is called galaxy. We are living in the Milky Way (Akash Ganga) galaxy. On a clear night, you can easily see a faint band of cloud running across the sky. This is the Milky Way galaxy.
Posted by Abhijit Singh 5 years, 2 months ago
- 4 answers
Nauman Malek 5 years, 2 months ago
Posted by Ganesh Sharma 5 years, 2 months ago
- 5 answers
Rahul Kumar 5 years, 2 months ago
Posted by Prakrathi Hebri 5 years, 2 months ago
- 1 answers
Gaurav Seth 5 years, 2 months ago
Aim: Same current flows through every part of the above circuit.
Procedure: Connect ammeters, ‘A’1 between B and C, and ‘A2’ between D and E. Adjust the sliding contact of the rheostat initially for a small current. Note all the ammeter readings. These reading give us current flowing through the resistors R1, R2 and R3 The current in the circuit is now increased by changing the position of sliding contact J’ of the rheostat. Note all the ammeter readings each time.
Conclusion: Same reading of all the ammeter in each observation concluded that same current flows through every part of the circuit.
Precautions: All the connection should be tight and properly connected as per circuit diagram. The positive terminal of the ammeter and voltmeter must be connected to the positive terminal of the battery or battery eliminator.
Posted by Shruthi Shirgaonkar 5 years, 2 months ago
- 1 answers
Nauman Malek 5 years, 2 months ago
Posted by Harshit Yadav 5 years, 2 months ago
- 4 answers
Yogita Ingle 5 years, 2 months ago
The human heart is made up of four chambers. There are two superior atria and two inferior ventricles. The heart chamber that has the thickest muscle wall is the left ventricle. The left ventricle is responsible for pumping the blood around the heart and so it needs to have a strong muscle wall.
Posted by Haritha Haritha 5 years, 2 months ago
- 2 answers
Yogita Ingle 5 years, 2 months ago
Elements – Elements constitute the simplest chemical substances in which all the atoms are exactly the same
Posted by Pragyat Nikunj 5 years, 2 months ago
- 2 answers
Jaya Nidhi Dimple 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
Electronegativity : The electronegativity of an element is defined as the relative tendency of its atom to attract electrons towards itself when it is bounded to the atom of another elements.
Posted by Anusha. R Anu 5 years, 2 months ago
- 2 answers
Vivek Thapa 5 years, 2 months ago
Posted by Jatin Dhiman 5 years, 2 months ago
- 2 answers
Gaurav Seth 5 years, 2 months ago
Power is consumed across the resistor when current flows through it.
The formula for Power consumed, P = VI
P = V x (V/R) {because according to Ohm’s Law, V = IR}
So let = Power consumed across resistor
Power consumed across resistor
Therefore ratio of the electric power consumed by R and 2R,
Posted by Pawan Kumawat 5 years, 2 months ago
- 1 answers
Madhura Dighikar 5 years, 2 months ago
myCBSEguide
Trusted by 1 Crore+ Students
Test Generator
Create papers online. It's FREE.
CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
Abdul Qhadir Azhari Azhari 5 years, 2 months ago
1Thank You