physics

Which of the following substances lowers the surface tension of water?

A. metal B. sand C. detergent D. paper Correct Answer: Option C C. detergent

6 years ago

The diagram given represents the graph of stress against strain for an elastic wire. The point Q on the graph is the?

A. elastic limit B. breaking point C. yield point D. proportional limit Correct Answer: Option B B. breaking point

6 years ago

A student measures the volume of a liquid using a measuring cylinder. What else needs to be measured by the student in order to determine the density of the liquid?

A. depth of the liquid in the cylinder B. mass of the cylinder C. mass of the liquid D. temperature…

6 years ago

The dimensions of momentum are?

A. MLT B. ML‾¹T‾¹ C. MLT‾¹ D. ML‾¹T Correct Answer: Option C C. MLT‾¹ Explanation Momentum = kgms‾¹ = MLT‾¹

6 years ago

Which of the following statements about Gamma radiation is correct? Gamma radiation can?

A. be seen by the naked eye B. not pass through an aluminum foil C. be present naturally in our…

6 years ago

The nucleon number of an atom is the total number of?

A. electrons and protons B. electrons and neutrons C. neutrons minus electrons D. protons and neutrons Correct Answer: Option D…

6 years ago

Which of the following pairs of concepts constitutes complementary variables as expresses by the Heinsberg uncertainty principle?

A. Momentum and time B. Energy and acceleration C. Position and momentum D. Velocity and Momentum Correct Answer: Option C…

6 years ago

The opposition offered to an alternating current in a C-R series circuit is known as?

A. impedance B. resistance C. reactance D. friction Correct Answer: Option A A. impedance

6 years ago