1) g’ (x) is positive on (- ∞, 0) and negative on (0, ∞) 2) g’ (x) is negative on (- ∞, 0) and positive on (0, ∞) 3) g’ (x) changes sign on... View Article
1) f (x) is decreasing on (-1, 1) and has a local minimum at x = 1 2) f (x) is increasing on (-1, 1) and has a local minimum at x = 1 3) f... View Article
Statement 1: f has local maximum at x = - 1 and at x = 2 Statement 2: a = 1 / 2 and b = - 1 / 4 1) Statement 1 is true, Statement 2 is true;... View Article
Lemon has a high amount of citric acid, so in its natural state, it is acidic with the pH value of 2. Though lemon juice is acidic, a small... View Article
The efficiency of the heat engine is given by the formula η = 1 - (TL/TH) TL is the temperature of the cold sink TH is the temperature of the... View Article
The magnetic field induced in the diamagnetic material is opposite to the direction of the magnetic field. Therefore, diamagnetic materials get... View Article
The ideal gas law is given by the equation PV = nRT P is the pressure V is the volume T is the temperature R is the ideal gas constant n is... View Article
No real gas can be an ideal gas. There are certain assumptions made for an ideal gas. In the ideal gas, intermolecular forces and volume occupied... View Article
Direct current is not used at home because for the same value of the voltage, DC is more lethal than AC since direct current does not go through... View Article
The wavelength of the electron depends on its momentum. The momentum of the electron is determined using the formula p=mv m is the mass of the... View Article
The base can be considered as the chemical opposite of the acid. The reaction between the acid and the base is called the neutralization reaction.... View Article
The hydrogen bond is quite weak but makes a significant difference. The water stays liquid at the room temperature due to hydrogen bonding... View Article
If potassium dichromate is swallowed it can result in coma, abnormal bleeding, renal failure, liver damage and can also lead to death. Contact... View Article
Bias in a transistor means the direction in which the direct current flows from the emitter to the base. Similarly, the current flow direction... View Article
STP is the standard temperature and pressure and NTP is the normal temperature and pressure. As per IUPAC, the STP value of temperature and... View Article
Using Ohm’s law, Voltage, V = IR (Current x Resistance) The current, voltage and the resistance can be determined in a DC circuit. If the... View Article
Stopping potential is maximum when the energy is maximum. Violet has the least wavelength and the highest energy. Therefore, stopping potential... View Article
When the angle of incidence on the material is 600, the reflected light is completely polarised. The velocity of the refracted ray inside the... View Article
