The image of an object formed by a convex mirror is

• A. real, errect and enlarged
• B. real, inverted and enlarged
• C. virtual, erect and diminished
• D. virtual, erect and enlarge

A constant force of 5N acts for 5 seconds on a mass of 5kg initially at rest. Calculate the final momentum

• A. 125kgm/s
• B. 25kgm/s
• C. 15kgm/s
• D. 0kgm/s

Which of the following is stored by dry Leclanche cell?

• A. chemical energy
• B. nuclear energy
• C. solar energy
• D. heat energy

(a) The mass and wavelength of a moving electron are 9.0 x 10\(^{-31}\) kg and 1.0 x 10\(^{-10}\)m respectively. Calculate the kinetic energy of the electron. [ h = 6.6 x 10\(^{-34}\) Js]

X-rays and infrared rays are both electromagnetic. Which common property do the waves have? Both waves

• A. are longitudinal
• B. have same frequency
• C. have the same wavelength
• D. travel at the same speed in a vacuum

A certain radioisotope of \(^{235}_{92}U\) emits four alpha particles and three beta particles. The mass number and the atomic number of the resulting elements respectively are

• A. 219 and 87
• B. 84 and 223
• C. 223 and 87
• D. 219 and 81

A cell whose internal resistance is 0.55\(\Omega\) delivers a current of 4 A to an external resistor. The lost voltage of the cell is?

• A. 4.00 V
• B. 2.20 V
• C. 0.15 V
• D. 8.00 V

What is the reading of the vernier calipers shown below

• A. 1.79cm
• B. 1.73cm
• C. 1.39cm
• D. 1.34cm

The S.I units of frequency, period and amplitude of a wave are respectively

• A. hertz, second and centimeter
• B. second, metre and hertz
• C. metre, hertz and seconds
• D. hertz, second and metre

A converging lens of focal length 5cm forms a virtual image which is 10cm from the lens. How far from the lens is the object?

• A. 2.0cm
• B. 3.3cm
• C. 5.0cm
• D. 10.0cm