Rafal K.

Rafal K.

£18 - £22 /hr

Philosophy BA (Bachelors) - University College London University

1 completed lesson

About me

I am an ambitious Philosophy student with particular interests in epistemology and philosophy of science. In my free time, I enjoy literature, movies, and theatre. Philosophy is not only a way to gratify my intellectual appetite, but it also has a profound bearing on the social and political world around us. 

I am an ambitious Philosophy student with particular interests in epistemology and philosophy of science. In my free time, I enjoy literature, movies, and theatre. Philosophy is not only a way to gratify my intellectual appetite, but it also has a profound bearing on the social and political world around us. 

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About my sessions

I craft each of the sessions for the particular demands of the student. Tutoring provides a unique opportunity to address specific interests as well as insecurities in the given subject. Though the central aim is to help students to ace academically, I try to spark the interest in each of the subjects. 


Apart from subjects listed I also offer help with Theory of Knowledge (TOK) (IB).

I craft each of the sessions for the particular demands of the student. Tutoring provides a unique opportunity to address specific interests as well as insecurities in the given subject. Though the central aim is to help students to ace academically, I try to spark the interest in each of the subjects. 


Apart from subjects listed I also offer help with Theory of Knowledge (TOK) (IB).

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Personally interviewed by MyTutor

We only take tutor applications from candidates who are studying at the UK’s leading universities. Candidates who fulfil our grade criteria then pass to the interview stage, where a member of the MyTutor team will personally assess them for subject knowledge, communication skills and general tutoring approach. About 1 in 7 becomes a tutor on our site.

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ZS

Zina Student

13 Mar

Qualifications

SubjectQualificationGrade
PhysicsInternational Baccalaureate (IB) (HL)7
PolishInternational Baccalaureate (IB) (SL)7
MathematicsInternational Baccalaureate (IB) (SL)7
FrenchInternational Baccalaureate (IB) (HL)6
English LiteratureInternational Baccalaureate (IB) (HL)6
HistoryInternational Baccalaureate (IB) (HL)5

General Availability

MonTueWedThuFriSatSun
Pre 12pm
12 - 5pm
After 5pm

Pre 12pm

12 - 5pm

After 5pm
Mon
Tue
Wed
Thu
Fri
Sat
Sun

Subjects offered

SubjectQualificationPrice
PolishA Level£22 /hr
MathsGCSE£18 /hr
PhilosophyGCSE£18 /hr
PhysicsGCSE£18 /hr
PolishGCSE£18 /hr
PhilosophyIB£22 /hr
Maths11 Plus£18 /hr

Questions Rafal has answered

In the photoelectric effect, why is the kinetic energy of the electrons independent of the intensity of light?

In our situation, the stopping potential doesn’t let any electron to pass. When we increase the frequency of incident light, the electrons get more energy. We know it from equation E=hf. When electrons gain more energy they can overcome the stopping potential. In effect they can reach the point due to acquired Kinetic Energy. Intensity doesn’t matter in this situation, because stopping potential will eventually force every additional electron back. Intensity just makes more electrons. On the other hand, higher energy caused by greater frequency makes current decrease. Constant intensity causes electrons to be ejected at the same rate all the time. They have greater velocity thanks to frequency. There will be fewer electrons travelling because they will quickly reach the point and there will be a time gap until the others will come. The experiment setup is like a motorway and current measured is like traffic. When there are few fast vehicles, there is no traffic.  In our situation, the stopping potential doesn’t let any electron to pass. When we increase the frequency of incident light, the electrons get more energy. We know it from equation E=hf. When electrons gain more energy they can overcome the stopping potential. In effect they can reach the point due to acquired Kinetic Energy. Intensity doesn’t matter in this situation, because stopping potential will eventually force every additional electron back. Intensity just makes more electrons. On the other hand, higher energy caused by greater frequency makes current decrease. Constant intensity causes electrons to be ejected at the same rate all the time. They have greater velocity thanks to frequency. There will be fewer electrons travelling because they will quickly reach the point and there will be a time gap until the others will come. The experiment setup is like a motorway and current measured is like traffic. When there are few fast vehicles, there is no traffic.  

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