GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 046

GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 046

451). Match List I with List II and select the correct answer using the code given below the lists
List I (Type of electromagnetic radiation)     List II (Approximate wavelength)
A. Infrared radiation                                           1. 10^−12
B. X-rays                                                           2. 10^−5
C. Ultraviolet radiation                                        3. 10^−10
D. Gamma rays                                                  4. 10^−8

A). 2 3 4 1
B). 1 4 3 2
C). 1 3 4 2
D). 2 4 3 1

Answer: 2 3 4 1


   
452).

The standing wave pattern along a string of length 60 cm is shown in the above diagram. If the speed of the transverse waves on this string is 300 m/s, in which one of the following modes in the string vibrating?
A). Fundamental
B). First overtone
C). Second overtone
D). Third overtone

Answer: Second overtone


   
453). A sonometer wire having a length of 50 cm is vibrating in the fundamental mode with a frequency of 100 Hz. Which of the following is the type of propagating wave and its speed?
A). Longitudinal, 50 m/s
B). Transverse, 50 m/s
C). Longitudinal, 100 m/s
D). Transverse, 100 m/s

Answer: Transverse, 100 m/s


   
454). Which one of the following is the amount of heat given up when 20g of steam at 100∘C is condensed and cooled to 20∘C?
A). 10000 cal
B). 11400 cal
C). 12400 cal
D). 13600 cal

Answer: 12400 cal

   
455). Which one of the following is the mode of heat transfer in which warm material is transported so as to displace a cooler material
A). conduction only
B). convection only
C). radiation
D). both conduction and convection

Answer: convection only


456). Gas law was given by
A). Boyle
B). Ostwald
C). Arrhenius
D). Faraday

Answer: Boyle

   
457). Growth of the baby in the uterus is found using
A). X-rays
B). Gamma rays
C). Ultra sound
D). Ultra violet rays

Answer: Ultra sound

   
458). The forms of matter are
A). 3
B). 4
C). 5
D). 7

Answer: 4


   
459). The Weather map telecast is T.V. is photographed by the satellite orbiting at a height of
A). 36,000 km.
B). 3,600 km.
C). 3,600 miles
D). 360 km

Answer: 36,000 km.


   
460). The unit of work and energy is
A). joule
B). Newton
C). coulomb
D). dioptre

Answer: joule