Nova
In some of the binary stars, it is possible that one of stars reaches the white dwarf stage first and it sucks in the matter of the other star, which is comparatively young. This results in a mild explosion called Nova . After the supernova explosion, the core continues to contract and ..
Question 1
Question: 'Operation flood' is related to: 1. Flood and disaster management 2. White revolution (Milk production) 3. Green revolution 4. Brown revolution Answer: ..
Improvement in Food Resources - Test
Question 1 - Question: 'Operation flood' is related to: 1. Flood and disaster management 2. White revolution (Milk production) 3. Green revolution 4. Brown revolution Answer:..
Growth Regulators
The growth of plants is regulated by certain chemical substances, which are synthesized by the plant in very small quantities. These substances are formed in one tissue or organ of the plant and are then transported to other sites where they produce specific effects on growth and development. They ..
Precautions while using LPG
LPG cylinder valve and the knob of the stove must be closed properly when not in use. Open flames, electric/kerosene stoves must not be used near an LPG cylinder. Rubber pipe connecting the cylinder and the stove must be regularly checked for any wear and tear. When a leakage (foul smell..
Types of Food Chains
There are mainly two types of food chains operating in nature. a) Grazing food chain b) Detritus food chain. Grazing food chain is generally seen in ecosystems such as grassland, pond or lake where a substantial part of the net primary production is grazed on by herbivores (catt..
Question 7
Question: Read the following telephonic conversation and complete the narration. Brother: Hello! Could I speak to Dr. Mathew? Doctor: Dr. Mathew speaking. Brother: Doctor, I wish to know about a certain patient called Joseph. Has his operation been successful? Doctor: Ye..
Logic Gates
Logic Gates - There are digital circuits which either allow a signal to pass through or stop it. The circuits other wise called as gate allows the signal to pass only when some logical condition are satisfied. Under such condition the circuits are called logic gates. They are building blocks of any..
Half adder
It adds two binary digits at a time. Truth Table of Half adder A B SUM CARRY 0 0 0 0 0 1 1 0 1 0 1 0 1 1 0 1 ..
Two-valued Boolean Algebra
A two valued Boolean algebra is defined on a set of two elements B = {0, 1}, with rules for + and . as shown in the following tables. These rules are exactly the same as the AND, OR and NOT operations..
A two valued Boolean algebra is defined on a set of two elements B = {0, 1}, with rules for + and . as shown in the following tables. These rules are exactly the same as the AND, OR and NOT operations.. Result
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