A. α-rays
B. β-rays
C. γ-rays
D. B and C have equal antiseptic propertie
Related Mcqs:
- Why gamma rays are used to kill bacteria to sterilize surgical equipment etc ?
A. Chargeless
B. Massless
C. Highly penetrating
D. All of above - If a diffraction grating is placed in the path of a light beam it reveals______________?
A. Wave property
B. Particle property
C. Energy particle
D. Electromagnetic wave property - A lens which converges a beam of parallel rays to a point is called______________?
A. diverging (or concave) lens
B. converging (or convex) lens
C. plano concave lens
D. plano convex lens - Two sources of light are coherent if they emit rays of_______________?
A. same wavelength
B. same amplitude of vibration
C. same wave length with constant phase difference
D. same amplitude and wavelength - ML-1 T-2 is the dimension of_______________?
A. Force
B. Pressure
C. Momentum
D. Energy - The carburettor of a car is an application of_______________?
A. Venturi meter
B. Bernoulli equation
C. Both A and B
D. None - The alternating voltage is an example of_______________?
A. A digital waveform
B. An analogue waveform
C. Discrete waveform
D. None at all - Work done will be maximum if the angle between the force F and displacement d is______________________?
A. 45°
B. 90°
C. 180°
D. 0°Submitted by: admin
- When a force is parallel to the direction of motion of the body, then work done on the body is_____________________?
A. zero
B. minimum
C. infinity
D. maximum - Work done by the force of friction is____________________?
A. always positive
B. always negative
C. positive only for small frictional force
D. positive only for large frictional force
