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CTET/ UPTET 2019 Exam | Important Physics Questions | 9th September 2019

CTET/ UPTET 2019 Exam | Important Physics Questions | 9th September 2019_30.1

Today, we are providing you the Misc. Questions, which help you to command over this subjects.Taught many interesting science information and add some fun in a science teaching-learning process.This section is not only important for CTET 2019 Exam i.e UPTET, PTET, REET,HTET etc. So, we will provide you the questions which will help you in preparing for Exam.



Q1. The frequency of direct current is ____________
एकदिश धारा की आवृत्ति क्या है?

(a) Zero/ शून्य
(b) 50 HZ
(c) 60 HZ
(d) 100 HZ

Q2. The term ‘Higgs Boson’ is associated with –
‘हिग्स बोसोन’ शब्द किससे सम्बन्धित है?

(a) Nano Technology/ नैनो टेक्नोलॉजी
(b) Oncology/ ऑन्कोलॉजी
(c) God Particle/ गॉड पार्टिकल
(d) Stem Cell Research/ स्टेम सेल शोध

Q3. Which term is not associated with sound wave?
ध्वनि तरंग का संबंध किस शब्द से नहीं है?

(a) Hertz/ हर्ट्ज़
(b) Decibel/ डेसिबल
(c) Candela/ कैन्डेला
(d) Mach/ मैक

Q4. What is the fundamental unit of amount of a substance?
किसी पदार्थ की मात्रा की मूलभूत इकाई क्या है?

(a) Mole/ मोल
(b) Candela/ कैंडेला
(c) Kelvin /केल्विन
(d) Meter/मीटर

Q5. Which one of the following is a good electrical conductor?
निम्नलिखित में से कौन सा एक अच्छा विद्युत चालक है?

(a) Graphite/ग्रेफाइट
(b) Diamond/हीरा
(c) Peat/पीट
(d) Charcoal/ चारकोल

Q6.Which of the following pairing is incorrect?
निम्नलिखित में से कौन सा युग्म गलत है?

(a) Hygrometer – Water vapour content of the atmosphere/ हाइग्रोमीटर – वायुमंडल की जल वाष्प सामग्री
(b) Lactometer – Specific gravity of liquids/ लैक्टोमीटर – तरल पदार्थों का विशिष्ट गुरुत्व
(c) Anemometer – Speed of the wind/ एनीमोमीटर – हवा की गति
(d) Seismograph – Earthquakes/ सीस्मोग्राफ – भूकंप

Q7. Diamond does not conduct electricity, because –
हीरा बिजली का संचालन नहीं करता है, क्योंकि-

(a) It’s structure is very compact/इसकी संरचना बहुत संक्षिप्त है
(b) It is of crystalline nature/ यह क्रिस्टलीय प्रकृति का होता है
(c)There are only carbon atoms present in it/ इसमें केवल कार्बन परमाणु मौजूद होते हैं
(d) No free electrons are present in it/ इसमें कोई फ्री इलेक्ट्रॉन मौजूद नहीं हैं

Q8. Why is weightlessness experienced while orbiting the earth in space ships?
अंतरिक्षयान में पृथ्वी की परिक्रमा करते समय भारहीनता का अनुभव क्यों किया जाता है?

(a) Inertia/ जड़ता
(b) Acceleration/ त्वरण
(c) Zero gravity/ शून्य गुरुत्वाकर्षण
(d) Orbital motion/ कक्षीय गति

Q9. Sextant is an instrument used in which of the following?
सेक्स्टेंट निम्नलिखित में से किस उपकरण में प्रयुक्त होता है?

(a) Cloud cover/क्लाउड कवर
(b) Navigation/नेविगेशन
(c) Agriculture/कृषि
(d) Medical treatment/ चिकित्सा उपचार

Q10. Arithmometer was invented by –
अरिथमोमीटर का अविष्कार किस के द्वारा किया गया था?

(a) Evangelista Torricelli/ इवैंजेलिस्ता टोर्रिकेली
(b) Charles Xavier Thomas/ चार्ल्स जेवियर थॉमस
(c) Edward Teller/ एडवर्ड टेलर
(d) Charles Babbage/ चार्ल्स बैबेज

Solutions:

S1. Ans.(a)

Sol. DC implies no changes in value. Frequencies of signals are defined by how many changes per time, e.g. 60 cycles per second. In case of DC with there are 0 changes per second. Hence the frequency of DC is zero.

S2. Ans.(c)

Sol. The term ‘Higgs Boson’ is associated with God particle.

S3.Ans.(c)

Sol. Candela is not related to sound. It is unit of light intensity.

S4. Ans.(a)

Sol. The mole is the unit of measurement for amount of substance in the International System of Units (SI). The unit is defined as the amount or sample of a chemical substance that contains as many constitutive particles.

S5. Ans.(a)

Sol. Graphite is a very good conductor of electricity due to the mobility of the electrons in its outer valence shells.

S6. Ans.(b)

Sol.A lactometer is an instrument used to check purity of milk.

S7. Ans.(d)

Sol.Diamond is a bad conductor of electricity but good conductor of heat. Electricity is conducted in a crystal by electrons that are relatively free. But in diamond, each carbon atom is covalently bonded with four other carbon atoms and there are no free electrons.

S8. Ans.(c)

Sol. Weightlessness experienced while orbiting the earth in space ships is due to Zero gravity.

S9. Ans.(b)

Sol.The sextant is an instrument used to measure angles. Mainly used at sea, the tool is so named because its arc is one sixth of a circle – 60 degrees.

S10. Ans.(b)

Sol.The Arithmometer was the first digital mechanical calculator strong enough and reliable enough to be used daily in an office environment. It was invented by Charles Xavier Thomas.

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