GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 129
1281). Consider the following statements:
Assertion (A) : On rainy day small oil film on water show brilliant colours.
Reason (R) : This is due to polarization of light.
Now select your answer according to the coding scheme given below:
A). Both (A) and (R) are individually true and (R) is the correct explanation of (A)
B). Both (A) and (R) are individually true and (R) is not the correct explanation of (A)
C). (A) is true, but(R) is false
D). (A) is) false, (but (R) is true
Answer: (A) is true, but(R) is false
1282). A particle motion is given by distance - time curve as shown in the figure. The maximum instantaneous velocity of the particle is around the point -
Assertion (A) : On rainy day small oil film on water show brilliant colours.
Reason (R) : This is due to polarization of light.
Now select your answer according to the coding scheme given below:
A). Both (A) and (R) are individually true and (R) is the correct explanation of (A)
B). Both (A) and (R) are individually true and (R) is not the correct explanation of (A)
C). (A) is true, but(R) is false
D). (A) is) false, (but (R) is true
Answer: (A) is true, but(R) is false
1282). A particle motion is given by distance - time curve as shown in the figure. The maximum instantaneous velocity of the particle is around the point -
A). P
B). Q
C). R
D). S
Answer: R
1283). Gas lighters work on the basic principle of
A). plezo-electric effect
B). magnetic effect
C). thermo-electric effect
D). electromagnetic induction
Answer: plezo-electric effect
1284). Match the following lists and select the Answer:
List - l List - II
a) Raman effect 1) Magnetic field
b) Zeeman effect 2) Scattering
c) Stark effect 3) Relative velocity
d) Doppler effect 4) Electric field
Codes:
a b c d
A). 3 1 2 4
B). 4 3 2 1
C). 2 4 3 1
D). 2 1 4 3
Answer: 2 1 4 3
1285). If the rods were of lengths 1, 21 and 31 respectively, then the ratio of the respective sound velocities in them would be
A). 1 : 1 : 1
B). 1 : 2 : 3
C). 3 : 2 :1
D). 2 : 2 : 1
Answer: 1 : 1 : 1
1286). The dimensions of the ratio, of density to the modulus of elasticity are
A). L^2 T^2
B). L^−2 T^2
C). LT^−1
D). L^−1T
Answer: L^−2 T^2
1287). The moments of inertia of the rods A, B and C about their axis of symmetry respectively are in the ratio
A). 1 : 2 : 3
B). 1: 4 : 9
C). 1 : 5 : 10
D). 1 : 1 : 1
Answer: 1 : 1 : 1
1288). An enhanced beam of monochromatic and coherent light is called
A). MASER
B). LASER
C). TESTER
D). MASTER
Answer: LASER
1289). Newton's law of cooling is a special case of
A). Wien's displacement law
B). Kirchhoff 's law
C). Stefan's law
D). Planck's law
Answer: Stefan's law
1290). Match List l with List II correctly and select your answer using the codes given below:
List - I List - ll
a) Isothermal process 1) 'V' constant, 'P' and "T" change
b) Adiabatic process 2) 'T' constant, “P" and 'V' change
c) isobaric process 3) Heat is neither allowed to enter nor leave the system
d) isochoric process 4) 'P' constant, 'T' and 'V' change
Codes:
a b c d
A). 3 2 1 4
B). 2 3 4 1
C). 4 3 2 1
D). 1 4 4 2
Answer: 2 3 4 1
B). Q
C). R
D). S
Answer: R
1283). Gas lighters work on the basic principle of
A). plezo-electric effect
B). magnetic effect
C). thermo-electric effect
D). electromagnetic induction
Answer: plezo-electric effect
1284). Match the following lists and select the Answer:
List - l List - II
a) Raman effect 1) Magnetic field
b) Zeeman effect 2) Scattering
c) Stark effect 3) Relative velocity
d) Doppler effect 4) Electric field
Codes:
a b c d
A). 3 1 2 4
B). 4 3 2 1
C). 2 4 3 1
D). 2 1 4 3
Answer: 2 1 4 3
1285). If the rods were of lengths 1, 21 and 31 respectively, then the ratio of the respective sound velocities in them would be
A). 1 : 1 : 1
B). 1 : 2 : 3
C). 3 : 2 :1
D). 2 : 2 : 1
Answer: 1 : 1 : 1
1286). The dimensions of the ratio, of density to the modulus of elasticity are
A). L^2 T^2
B). L^−2 T^2
C). LT^−1
D). L^−1T
Answer: L^−2 T^2
1287). The moments of inertia of the rods A, B and C about their axis of symmetry respectively are in the ratio
A). 1 : 2 : 3
B). 1: 4 : 9
C). 1 : 5 : 10
D). 1 : 1 : 1
Answer: 1 : 1 : 1
1288). An enhanced beam of monochromatic and coherent light is called
A). MASER
B). LASER
C). TESTER
D). MASTER
Answer: LASER
1289). Newton's law of cooling is a special case of
A). Wien's displacement law
B). Kirchhoff 's law
C). Stefan's law
D). Planck's law
Answer: Stefan's law
1290). Match List l with List II correctly and select your answer using the codes given below:
List - I List - ll
a) Isothermal process 1) 'V' constant, 'P' and "T" change
b) Adiabatic process 2) 'T' constant, “P" and 'V' change
c) isobaric process 3) Heat is neither allowed to enter nor leave the system
d) isochoric process 4) 'P' constant, 'T' and 'V' change
Codes:
a b c d
A). 3 2 1 4
B). 2 3 4 1
C). 4 3 2 1
D). 1 4 4 2
Answer: 2 3 4 1
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