Light of energy 5.0 eV falls on a metal of work function 3.0 eV and…
Light of energy 5.0 eV falls on a metal of work function 3.0 eV and electrons are emitted,…
Browsing Category
Answers
44896 posts
Which of the following statements is not a reason for using soft iron in making…
Which of the following statements is not a reason for using soft iron in making the core of…
Beta particles are faster-moving
Beta particles are faster-moving A. protons B. electrons C. neutrons D. photons Correct Answer: Option B Explanation
an electric motor is a machine that converts
an electric motor is a machine that converts A. mechanical energy into electrical energy B. electrical energy into…
Which of the following statements is an advantage of nuclear fusion over nuclear fission?
Which of the following statements is an advantage of nuclear fusion over nuclear fission? A. The resulting chain…
The mass and weight of a body on earth are 8kg and 80N respectively. Determine…
The mass and weight of a body on earth are 8kg and 80N respectively. Determine the mass and…
A bar magnet is placed near and lying along the axis of a solenoid connected…
A bar magnet is placed near and lying along the axis of a solenoid connected to a galvanometer.…
An electric lamp is rated 240V, 40W. What is the cost of running the lamp…
An electric lamp is rated 240V, 40W. What is the cost of running the lamp for 72 hours…
Which of the following statements explains lost volt in an electric circuit? The
Which of the following statements explains lost volt in an electric circuit? The A. total p.d from a…
a chemical cell of internal resistance 1(Omega) supplies electric current to an external resistor of…
a chemical cell of internal resistance 1(Omega) supplies electric current to an external resistor of resistance 3(Omega). Calculate…