How much energy is converted in a resistor of 5 ohm carrying a current of 2.0 after 10 seconds
- 4.0 J
- 200 J
- 25 J
- 100 J
Which of the following has the largest energy
- A photon of wavelength 50 μm
- A photon of wavelength 200 nm
- A photon of wavelength 2 pm
- A photon of wavelength 1 nm
If the value of acceleration due to gravity (g) is reduced to half, the time of flight “T” of projectile become
- 4T
- 2T
- T/4
- T/2
When the transverse wave passes. the particles of the medium Oscillate
- With different frequencies
- Parallel to the direction of wave travel
- With different harmonics
- Perpendicular to the direction of wave travel
Which one of the following bulbs has the least resistance if the current is kept constant
- 100 watt
- 400 watt
- 200 watt
- 300 watt
When a gas is compressed isothermally, the product of its pressure and volume during the process is
- Proportional to entropy
- Zero
- Constant
- Not constant
The magnetic field depends upon
- Strength, mass and distance
- Strength. distance and direction
- Strength, mass and direction
- Strength, mass and nature of magnetic materials
Which product is formed when RMgX reacts with CO2
- Ketone
- Carboxylic acid
- Ethers
- Aldehyde
Temperature increase in an exothermic reversible reaction, shift the equilibrium to
- Product side
- Increase in both
- Reactant side
- Remains unchanged
Sp2 hybrid carbon atom is present in
- Methanal
- Propanol
- Ethanol
- Methanol
